Birds
Mallard duck (Anas platyrhynchos)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Population Density | 30,438 | mean number of ducks counted in U.S. Fish and Wildlife Service mid-winter inventories 1978-1987 | Both Male and Female | Both Adults and Juveniles | Not Reported | San Joaquin Valley | Exposure Factor Datasets | |
Population Density | 15,221 | mean number of ducks counted in U.S. Fish and Wildlife Service mid-winter inventories 1978-1987 | Both Male and Female | Both Adults and Juveniles | Not Reported | Suisun Marsh | Exposure Factor Datasets | Solano |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|
Survival/ Mortality | 0.586 | estimated annual survival rate (1960-1971) | Female | Adult | Not Reported | Malheur National Wildlife Refuge | Exposure Factor Datasets | 0.081 (SE) |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific |
---|---|---|---|---|---|---|---|
Dietary Composition | flora (89.4%), fauna (10.6%) | Both Male and Female | Juvenile | 94 | Bear River Migratory Bird Refuge | Exposure Factor Datasets | 36-45 d |
Dietary Composition | flora (99.1%), fauna (0.92%) | Both Male and Female | Juvenile | 94 | Bear River Migratory Bird Refuge | Exposure Factor Datasets | 46-55 d |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 936.1 | mean body weight of 8 week old mallards | g | Both Male and Female | Juvenile | 15 | Exposure Factor Datasets | Laboratory |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Error |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 1,240 | g | Female | Adult | 220 | Illinois and Mississippi river valleys | Exposure Factor Datasets | hunter-harvested | 8 SE |
Body Weight - Mean | 1,163 | g | Male | Juvenile | 61 | Illinois and Mississippi river valleys | Exposure Factor Datasets | hunter harvested | 12 SE |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Error |
---|---|---|---|---|---|---|---|---|---|
Body Fat (total or %) | 111 | g (lipid) | Female | Both Adults and Juveniles | 9 | Mingo Basin | Exposure Factor Datasets | alternate plumage - early migrants, unpaired | 8 SE |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Home Range | 620 | ha | Male | Adult | 5 | Bemidji, Beltrami Co. | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Sex | Sample Size | Location | Type | Age-Specific |
---|---|---|---|---|---|---|
Time of Migration or Dispersal | May 5 - May 14 | Female | Not Reported | prairie pothold region of North Dakota | Exposure Factor Datasets | second year females |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Time of Mating/ Laying | April 4 - July (median = May) | time of clutch initiation | Female | Adult | 265 nests | eastern - south central North Dakota, near Jamestown | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Survival/ Mortality | 59 | Survival rates, not mortality. | % | Female | Adult | Not Reported | Lower Klamath National Wildlife Refuge, CA | Exposure Factor Datasets | 3.4 SE |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
---|---|---|---|---|---|---|---|---|---|
Population Density | 0.5 | For explanation of classifications, see p. 11 (classifications are Kern NWR, hunting clubs, etc). | birds/ha | Female | Not Reported | Not Reported | preirrigated croplands | Exposure Factor Datasets | wintering birds |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|
Dietary Composition | gastropoda (0.001), crustacea (0.007), insecta (0.003), and plant (0.980) | mean relative proportions (wet mass) of stomach contents | Both Male and Female | Not Reported | 22 | St. Lawrence River | Exposure Factor Datasets | CANADA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 10.4 | mean clutch size from first nesting attempt | eggs | Female | Adult | 151 | Exposure Factor Datasets | 0.2 (SE) | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
---|---|---|---|---|---|---|---|---|---|---|
Territory Size | 70 | mean length of drainage ditch (5 ft wide) defended | yd | Male | Adult | 8 ducks | Conaway Ranch | Exposure Factor Datasets | Yolo | breeding |
Snowy Plover (Charadrius nivosus formerly Charadrius alexandrinus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|---|
Time of Mating/ Laying | March 29-June 25 (1991), March 11-June 29 (1992) | length of egg laying season in two sample years | Female | Adult | Not Reported | Fuente de Piedra lake, s. Spain | Exposure Factor Datasets | SPAIN | |
Clutch or Litter Size | 2.63 | clutch size | eggs/clutch | Female | Adult | 316 nests | Fuente de Piedra lake, s. Spain | Exposure Factor Datasets | SPAIN |
Killdeer (Charadrius vociferus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Population Density | 14.3 | estimated breeding density in planted field habitat (14 ha) | pairs/100 ha | Both Male and Female | Adult | Not Reported | St. Paul Campus, Univ. of MN | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
---|---|---|---|---|---|---|---|---|
Dietary Composition | Physidae (0.9%), Odonata larvae (1.3%), Corixidae adult (1.3%), Coleoptera adult (25.5%), Coleoptera larvae (21.2%), Coleoptera adult pieces (17.0%), Diptera larvae (18.3%), Hymenoptera adult (6.1%), Unidentified (2.6%), plant fibers (1.3%), grit (4.5%) | volumetric aggregate percent of esophageal contents | Not Reported | Both Adults and Juveniles | 15 birds | Mingo National Wildlife Refuge | Exposure Factor Datasets | migrating |
Least Tern (Sterna antillarum)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 1.73 | mean clutch size | eggs/clutch | Female | Adult | 396 clutches | Cape Romain National Wildlife Refuge | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Hatching Success | 0.79-1.31 | mean hatching success during two years of study | eggs hatched/nest | Not Reported | Chick | 545-606 nests per study year | Sandy Point, West Haven | Exposure Factor Datasets |
Peregrine Falcon (Falco peregrinus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 1.78 | mean number of fledglings per nest | fledglings/nest | Both Male and Female | Fledgling | 18 clutches | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|
Fledging or Weaning Rate | review | Both Male and Female | Fledgling | Not Reported | Exposure Factor Datasets | |
Survival/ Mortality | review | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 2.6 | fledlings/pair | Both Male and Female | Fledgling | Not Reported | Exposure Factor Datasets | GERMANY | ||
Survival/ Mortality | brood survival; increase to 60% in 1991, due to protective measures | % | Not Reported | Fledgling | Not Reported | Exposure Factor Datasets | GERMANY |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | review | Female | Adult | Not Reported | Exposure Factor Datasets | USA | |
Dietary Composition | review | Not Reported | Adult | Not Reported | Exposure Factor Datasets | USA |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
---|---|---|---|---|---|---|---|---|
Population Density | 17 | pairs/172 miles of river | Both Male and Female | Adult | 17 pairs | Yukon River | Exposure Factor Datasets | breeding |
American Kestrel (Falco sparverius)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Duration of Incubation or Gestation | d | Both Male and Female | Embryo | Not Reported | Sagehen Creek Field Station | Exposure Factor Datasets | Nevada, Sierra | ||
Home Range | 109.4 | average home range - breeding | ha | Both Male and Female | Adult | 32 | Sagehen Creek Field Station | Exposure Factor Datasets | Nevada, Sierra |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Lab |
---|---|---|---|---|---|---|---|---|---|---|
Time of Mating/ Laying | March-May | period of laying | Female | Adult | Not Reported | Exposure Factor Datasets | breeding | Laboratory | ||
Age at Fledging, Metamorphosis, Weaning | 28.4 | mean nestling period | d | Both Male and Female | Fledgling | 29 chicks | Exposure Factor Datasets | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Time of Fledging or Metamorphosis | July 29 | median fledging date | Both Male and Female | Fledgling | 27 pairs | Great Basin (elev. 1260-2340 m) | Exposure Factor Datasets | Lassen |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|
Body Fat (total or %) | 2.46 | total body fat based on Soxhlet fat extraction | g | Both Male and Female | Adult | 21 | Exposure Factor Datasets | 0.25 SE | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
---|---|---|---|---|---|---|---|---|---|
Dietary Composition | mammal (24%), insect (74%), other (2%) | percent composition of sample pellets (by volume) | Both Male and Female | Adult | 104 pellets | agricultural lands | Exposure Factor Datasets | Yolo | breeding |
Dietary Composition | mammal (82%), insect (16%), other (2%) | percent composition of sample pellets (by volume) | Both Male and Female | Adult | 116 pellets | agricultural lands | Exposure Factor Datasets | Yolo |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 4.0 | average number of young fledged | fledges/nest | Not Reported | Fledgling | 4 nests | Hanford Site, Benton and Franklin Counties | Exposure Factor Datasets | 0.41 |
Population Density | 10 | number of nesting pairs counted annually on study site | pairs/1476 sq km | Both Male and Female | Adult | 4 years | Hanford Site, Benton and Franklin Counties | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Lab |
---|---|---|---|---|---|---|---|---|---|---|
Dietary Composition | white-footed mice (6.0%), meadow mice (78.9%), shrews (1.3%), pocket gopher (1.0%), uinta ground squirrel (0.3%), sm-med sized birds (5.7%), insects (59.9%) | percent occurrence of prey items in pellets during nesting | % | Not Reported | Not Reported | 299 pellets from 8 nests | Jackson Hole | Exposure Factor Datasets | ||
Food Ingestion Rate | averages of food amounts eaten per day | g | Both Male and Female | Not Reported | 3 birds | Exposure Factor Datasets | captive | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Dietary Composition | invertebrates (10.5%), herpetofauna (2.4%), mammals (79.1%), birds (8.0%) | dietary composition (% of total biomass), 1972-1973 | Female | Not Reported | 4 | Arcata Bottoms | Exposure Factor Datasets | Humboldt |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Dietary Composition | insects (97%), isopod (5%), birds (27%), mammals (25%) | percent occurrence in sample pellets | Not Reported | Not Reported | Not Reported | agricultural lands | Exposure Factor Datasets | Tulare |
Mourning Dove (Zenaida macroura)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Growth Rate | see figures | growth rates of body weight, body length, wing, alar tract from hatching to fledging | Both Male and Female | Nestling | 53 nestlings | Fremont and Waterloo areas | Exposure Factor Datasets |
Time of Nesting | April 20-September 20 | period during which active nests were observed | Both Male and Female | Adult | 121 nests | Fremont and Waterloo areas | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Time of Nesting | mid-March to September 20 | nesting season duration (peaks in July) | Both Male and Female | Adult | Not Reported | Gray Lodge State Refuge | Exposure Factor Datasets | Butte | |
Age at Fledging, Metamorphosis, Weaning | 12-13 | age at which young leave nest | d | Both Male and Female | Fledgling | Not Reported | Gray Lodge State Refuge | Exposure Factor Datasets | Butte |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 90.3% | proportion of young fledged in successful nests | Both Male and Female | Adult | 123 nests | Rufus Woods Lake area | Exposure Factor Datasets |
Fledging or Weaning Rate | 0.8 | mean number of young fledged per nesting attempt | Both Male and Female | Fledgling | 123 nests | Rufus Woods Lake area | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|
Duration of Incubation or Gestation | review | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets | CANADA, MEXICO, USA | |
Clutch or Litter Size | review | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets | CANADA, MEXICO, USA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Age at Sexual Maturity | 80 | age at which birds became capable of breeding | d | Male | Yearling | 79 birds | Exposure Factor Datasets | |
Age at Sexual Maturity | 93 | age at which birds became capable of breeding | d | Female | Yearling | 91 birds | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific |
---|---|---|---|---|---|---|---|---|---|
Age at Sexual Maturity | 93 | age at which birds were judged capable of reproduction | d | Female | Juvenile | 58 birds | Exposure Factor Datasets | 131 days |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Survival/ Mortality | 86% | estimated mortality rate in the first year, based on band returns | Both Male and Female | Juvenile | Not Reported | Texas A&M College campus | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|
Food Ingestion Rate | 71 | intake based on analysis of crop contents | kcal/day/bird | Not Reported | Adult | 120 birds | captured in Grand Forks County, ND | Exposure Factor Datasets | 66.6-75.4 95% CI | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Population Density | 9.08 (76) | mean density of breeding birds (maximum density in parentheses) | pairs/square mile | Both Male and Female | Adult | 130 sample units (160 acres/unit) | Exposure Factor Datasets |
Burrowing Owl (Athene cunicularia formerly Speotyto cunicularia)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Hatching Success | based on number of young observed at burrow | % | Both Male and Female | Hatchling | 4 burrows | Umatillo and Morrow counties | Exposure Factor Datasets | |
Time of Mating/ Laying | April | Female | Adult | 4 burrows | Umatillo and Morrow counties | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Dietary Composition | mammals (18.9%), birds (3.9%), insects (29.9%), vegetation (71.3%) | mean percent occurrence in pellets | Both Male and Female | Not Reported | 209 pellets | Oakland Airport | Exposure Factor Datasets |
Dietary Composition | mammals (31.4%), birds (5.9%), insects (28.6%), vegetation (61.0%) | mean percent occurrence in pellets | Both Male and Female | Not Reported | 608 pellets | Oakland Airport | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|---|
Population Density | nesting density based on nearest-neighbor test | pairs/km2 | Both Male and Female | Adult | 23-29 pairs | Mapimf Biosphere Reserve, Durango (1,000-1,350 m) | Exposure Factor Datasets | MEXICO | |
Fledging or Weaning Rate | 1.91 | fledglings/successful nest | Both Male and Female | Adult | 52 nests | Mapimf Biosphere Reserve, Durango (1,000-1,350 m) | Exposure Factor Datasets | MEXICO |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|
Age at Sexual Maturity | review | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets | CANADA, MEXICO, USA | |
Survival/ Mortality | review | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets | CANADA, MEXICO, USA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Hatching Success | 2.2 | mean hatching success in natural burrows | eggs hatched/eggs laid | Not Reported | Juvenile | 59 nests | New Mexico State University | Exposure Factor Datasets | 1.9 SE |
Fledging or Weaning Rate | 1.9 | mean fledging rate in natural burrows | fledglings/nest | Not Reported | Juvenile | 59 nests | New Mexico State University | Exposure Factor Datasets | 1.9 SE |
Great Horned Owl (Bubo virginianus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 1,229 | mean body weight | g | Male | Adult | 4 birds | Exposure Factor Datasets | fasted | 106 | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Dietary Composition | Lepus californicus (0.2%), Sylvilagus spp. (6.0%), unident. lagomorphs (1.7%), Peromyscus maniculatus (69.2%), Microtus monatus (0.7%), Dipodomys spp. (0.6%), unident. rodents (0.4%), Myotis spp. (1.1%), unident. chiropteran (0.2%), unident. mammal (3.9%), Larus californicus (1.3%), unident. large bird (7.1%), unident. medium bird (1.1%), unident. small bird (0.9%), unident. vertebrate (4.3%), insects (1.5%) | percent occurence of prey items in pellets | Not Reported | Not Reported | 188 pellets, 536 remains | Negit Island, Mono Lake | Exposure Factor Datasets | Mono |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 64% | percent of nests known to fledge young | Not Reported | Fledgling | 11 nests | south-central Montana | Exposure Factor Datasets |
Hatching Success | 100% | percent of eggs hatched in nests that produced young | Not Reported | Nestling | 11 nests | south-central Montana | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Dietary Composition | Neotoma fuscipes (7.9%), Thomomys bottae (20.7%), Mus musculus (25.0%), Microtus californicus (14.9%), Reithrodontomys megalotis (1.7%), Perognathus sp. (4.1%), Dipodomys agilis (4.3%), Peromyscus sp. (3.8%), Notiosorex crawfordi (0.3%), Sylvilagus sp. (0.8%), Sorex ornatus (0.1%), Scapanus latimanus (0.7%), Stenopelmatus sp (2.1%), Elgaria multicarinata (0.1%), unident. birds (4.3%) | percent of total number of specimens identified in pellets | Not Reported | Not Reported | 25 lbs of pellets | Univ. of Calif., Los Angeles campus | Exposure Factor Datasets | Los Angeles |
Dietary Composition | Neotoma fuscipes (11.3), Thomomys bottae (36.2), Mus musculus (14.0), Microtus californicus (13.5), Reithrodontomys megalotis (8.7), Perognathus sp. (7.8), Dipodomys agilis (3.1), Peromyscus sp. (3.1), Notiosorex crawfordi (1.3), Sylvilagus sp. (0.5), Sorex ornatus (0.5) | percent of total number of specimens identified in pellets | Not Reported | Not Reported | Not Reported | Santa Monica Mountains (1 ledge) | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 1-4 | brood size at the time of banding | young/nest | Not Reported | Juvenile | 906 nests | near Cincinnati | Exposure Factor Datasets |
Hatching Success | 47.3% | percent of nests with at least one young surviving to banding age (of all pairs observed) | Not Reported | Juvenile | 1777 territories | near Cincinnati | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Lab |
---|---|---|---|---|---|---|---|---|---|---|
Metabolic Rate | 0.59 | average basal metabolic rate | cc O^2/g bw/hr | Not Reported | Adult | 3 birds | Exposure Factor Datasets | postabsorptive | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Dietary Composition | Microtus (66.7%), Peromyscus (27.6%), Dipodomys (1.1%), Sylvilagus (0.3%), Euphagus cyanocephalus (0.3%), Sorex (0.2%), Tadarida brasiliensis (0.2%), Mustela frenata (0.2%), unident. bird (1.4%), unident. small mammal (0.7%), insect (1.3%) | percent occurence of prey items in pellets | Not Reported | Not Reported | 107 pellets | Tule Lake National Wildlife Refuge | Exposure Factor Datasets | Siskiyou |
Northern Flicker (Colaptes auratus)
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | range of mean clutch sizes measured among auratus ssp., cafer ssp., and auratus/cafer hybrid flickers | eggs/clutch | Female | Adult | 10-32 clutches per subspecies or hybrid group | Lincoln, Morrill, Scottsbluff Counties, NE; Platte County, WY | Exposure Factor Datasets |
Hatching Success | range of mean brood to clutch size ratios measured among male and female auratus ssp., cafer ssp., and auratus/cafer hybrid flickers | Both Male and Female | Adult | 4-42 clutches per subspecies or hybrid group | Lincoln, Morrill, Scottsbluff Counties, NE; Platte County, WY | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Time of Nesting | mid-April to early May | time of nest excavation starts | Both Male and Female | Adult | 40 pairs | near New Concord | Exposure Factor Datasets |
Willow Flycatcher (Empidonax traillii)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Time of Hatching or Parturition | June 30 | time by which first eggs hatched | Both Male and Female | Adult | 11 nests | Perazzo Meadows, Lacey Valley (32 km NW of Truckee) | Exposure Factor Datasets | Sierra |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Countries | Error |
---|---|---|---|---|---|---|---|---|---|---|---|
Territory Size | 3,009 | mean territory size based on observed perch sites and territorial disputes | m^2 | Male | Adult | 61 observation periods | Badenoch Swamp, 14 km SE of Guelph (69 deg, 32'N, 80 deg, 13' W) | Exposure Factor Datasets | breeding | CANADA | 153 SE |
Bushtit (Psaltriparus minumus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 5.5 | mean body weight | g | Not Reported | Adult | 6 birds | captured at Occidental College, Los Angeles | Exposure Factor Datasets | 0.2 SE | Laboratory |
Loggerhead Shrike (Lanius ludovicianus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Survival/ Mortality | 13.0 | estimated probability of an egg surviving to hatch in fenceline areas | % | Not Reported | Embryo | 39 clutches | Archbold Biological Station | Exposure Factor Datasets | 0.2 SD |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Clutches or Litters per year | 1 | clutches/yr | Both Male and Female | Adult | 77 pairs | Pawnee National Grassland | Exposure Factor Datasets |
Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|
Clutches or Litters per year | clutches/yr | Both Male and Female | Adult | 122 pairs | Lawton, Comanche County | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3.8 | mean clutch size | eggs/clutch | Female | Adult | 24 clutches | Archbold Biological Station, Highlands County | Exposure Factor Datasets | 0.9 SD |
Exposure Endpoint Type | Endpoint Value | Location | Type | Countries |
---|---|---|---|---|
Clutches or Litters per year | review | Exposure Factor Datasets | CANADA, USA |
Bell's Vireo (Vireo bellii)
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Age at Fledging, Metamorphosis, Weaning | period from hatching to leaving nestd | d | Not Reported | Fledgling | 6 birds | Bloomington | Exposure Factor Datasets |
Song Sparrow (Melospiza melodia)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3.14 | eggs/nest | Both Male and Female | Adult | Not Reported | San Pablo Marsh; San Francisco Bay | Exposure Factor Datasets | Contra Costa |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 11.1 | numbers of eggs laid | Female | Adult | 79 females | Mandarte Island | Exposure Factor Datasets | CANADA | 0.76 |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Survival/ Mortality | 20 | known minimum survival rates of juveniles; 1966-69 | % | Both Male and Female | Juvenile | nr | Point Reyes National Seashore | Exposure Factor Datasets | Marin |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Territory Size | 0.21;0.26 | rural; suburban | ha | Both Male and Female | Adult | 10 territories | Amherst MA, 42 deg.22' N., 72 deg. 30' W | Exposure Factor Datasets |
Western Meadowlark (Sturnella neglecta)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Dietary Composition | Sturnella sp., Colaptes, sparrows, Lepus californicus, Sigmodon hispidus, Sylvilagus sp., Felis domesticus | species observed to be scavenged by meadowlarks | Not Reported | Adult | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 2.32 | number of young fledged per female | young/female | Female | Adult | 38 females | near Delta, Manitoba | Exposure Factor Datasets | CANADA | 0.06 SE |
Brown Pelican (Pelecanus occidentalis)
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Age at Fledging, Metamorphosis, Weaning | range of mean fledging ages over four years | days | Not Reported | Fledgling | 7-12 birds/year | Tarpon Key | Exposure Factor Datasets |
Double-crested Cormorant (Phalacrocorax auritus)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 1.33 | kg | Not Reported | Both Adults and Juveniles | 5 cormorants | Exposure Factor Datasets | Laboratory |
Exposure Endpoint Type | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | range in mean clutches in ground nests (across 4 years) | Female | Adult | 34-127 nests/colony | Lake Ontario (43 deg 53'N, 76 deg 24'W) | Exposure Factor Datasets | spring |