Birds
Mallard duck (Anas platyrhynchos)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Error |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 1,280 | g | Female | Both Adults and Juveniles | 10 | Mingo Basin | Exposure Factor Datasets | basic plumage, prespring migration departure | 13 SE |
Body Fat (total or %) | 65 | g (lipid) | Female | Both Adults and Juveniles | 11 | Mingo Basin | Exposure Factor Datasets | middle prealternate molt | 14 SE |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
---|---|---|---|---|---|---|---|---|---|
Dietary Composition | Total animal, 37.6: Gastropoda, 6.3; Insecta, 16.8; Crustacea, 11.3. Total plant, 62.4: Seeds, 56.4; vegetation, 6.0; roots and tubers, 4.1. |
Proportion by volume of plant and animal foods in the esophagi of mallards. | % (by volume) | Male | Not Reported | 39 | drift prairie and missouri Coteau of south-central North Dakota | Exposure Factor Datasets | during breeding season |
Dietary Composition | Total animal, 37.0: Gastropoda, 4.5; Insecta, 22.6; Crustacea, 7.5. Total plant, 63.0: Seeds, 58.5; vegetation, 4.5; roots and tubers, 3.9. |
Proportion by volume of plant and animal foods in the esophagi of mallards. | % (by volume) | Female | Not Reported | 41 | drift prairie and Missouri Coteau in south-central North Dakota | Exposure Factor Datasets | during breeding season, nonlaying female |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Body Weight - Mean | 1206 | g | Male | Adult | 660 | central North Dakota | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|
Body Fat (total or %) | 72.4 | g lipid | Female | Adult | Not Reported | prairie pothole region of North Dakota | Exposure Factor Datasets | 44.2 SD |
Body Fat (total or %) | 55.0 | g lipid | Female | Yearling | Not Reported | prairie pothole region of North Dakota | Exposure Factor Datasets | 39.7 SD |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|
Time of Nesting | April 15 (begin) - May 20 (end) | Not Reported | Not Reported | Not Reported | Chippewa National Forest, east of Bemidji Minnesota | Exposure Factor Datasets |
Time of Molt | August 8 (begin) - September 2 (end) | Not Reported | Not Reported | Not Reported | Chippewa National Forest, east of Bemidji, Minnesota | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 8.3 | eggs | Not Reported | Not Reported | 227 | Northeastern California | Exposure Factor Datasets | ||
Population Density | 20.8 | See table 2, p.99, for more detailed means. | breeding pairs/km2 | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets | 1.5 SE |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Survival/ Mortality | 56 | average survival rate of birds banded 1948-1982 | % | Female | Adult | Not Reported | Sacramento and San Joaquin Valleys, n.e. CA | Exposure Factor Datasets |
Survival/ Mortality | 47 | average survival rate of birds banded 1948-1982 | % | Male | Juvenile | Not Reported | Sacramento and San Joaquin Valleys, n.e. CA | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|
Time of Molt | July 21-27 | mean annual date of molt initiation (over 3 yr) | Male | Adult | 126 | Exposure Factor Datasets | Laboratory | |
Time of Molt | July 30-August 10 | mean annual date of molt initiation (over 3 yr) | Female | Adult | 131 | Exposure Factor Datasets | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|
Survival/ Mortality | 0.377 | estimated annual survival rate (1960-1971) | Male | Juvenile | Not Reported | Malheur National Wildlife Refuge | Exposure Factor Datasets | 0.046 (SE) |
Survival/ Mortality | 0.628 | estimated annual survival rate (1960-1971) | Male | Adult | Not Reported | Malheur National Wildlife Refuge | Exposure Factor Datasets | 0.035 (SE) |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific |
---|---|---|---|---|---|---|---|
Dietary Composition | flora (25.3%), fauna (74.7%) | Both Male and Female | Juvenile | 94 | Bear River Migratory Bird Refuge | Exposure Factor Datasets | 13-18 d |
Dietary Composition | flora (50.6%), fauna (49.4%) | Both Male and Female | Juvenile | 94 | Bear River Migratory Bird Refuge | Exposure Factor Datasets | 19-25 d |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|
Growth Rate | 195 | maximum growth rate based on body weight | g/wk | Female | Juvenile | 72 | Exposure Factor Datasets | Laboratory | ||
Food Ingestion Rate | 376.2 | food intake of 8 week old mallards | g/wk | Both Male and Female | Juvenile | 15 | Exposure Factor Datasets | 25.6 (SE) | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|---|
Inhalation Rate | 34.9 | respiration rate during darkness | breaths/min | Male | Adult | 1 bird | Exposure Factor Datasets | unrestrained | 1.29 SE | Laboratory |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | 8.6 | eggs | Female | Adult | 100 | western Edmunds Co., South Dakota | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Population Density | 6.71 (40) | 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 |
Clapper Rail (Rallus longirostris)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|---|
Longevity | 7-06 | from USFWS Bird Banding Laboratory data | yr-mo | Not Reported | Adult | 758 band recoveries | Exposure Factor Datasets | USA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 279.7 | mean body weight in sea-water acclimated birds | g | Not Reported | Adult | 16 | High Island, Chambers Co. | Exposure Factor Datasets | 6.9 |
Snowy Plover (Charadrius nivosus formerly Charadrius alexandrinus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|---|
Longevity | 7-00 | from USFWS Bird Banding Laboratory data | yr-mo | Not Reported | Adult | 35 band recoveries | Exposure Factor Datasets | USA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 43.1 | mean body weight | g | Male | Adult | 154 | Fuente de Piedra lake, s. Spain | Exposure Factor Datasets | SPAIN | 2.8 SD |
Killdeer (Charadrius vociferus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Population Density | 33.3 | estimated breeding density in open field habitat (24 ha) | pairs/100 ha | Both Male and Female | Adult | Not Reported | St. Paul Campus, Univ. of MN | Exposure Factor Datasets |
Population Density | 31.3 | estimated breeding density in asphalt area habitat (32 ha) | pairs/100 ha | Both Male and Female | Adult | Not Reported | St. Paul Campus, Univ. of MN | Exposure Factor Datasets |
Least Tern (Sterna antillarum)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Time of Molt | mid/late Jul-Sep | timing of pre-basic molt | Not Reported | Adult | Not Reported | coastal areas | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 76.8 | estimated survival rate of banded juveniles | % | Not Reported | Fledgling | Not Reported | Aransas and San Patricio Counties | Exposure Factor Datasets | 2.0 2SE |
Peregrine Falcon (Falco peregrinus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|---|
Time of Hatching or Parturition | Apr. | Both Male and Female | Hatchling | Not Reported | Sierra Madre Oriental, Nuevo Leon | Exposure Factor Datasets | MEXICO | ||
Hatching Success | 1.8 | average over 4 yr study period | young/successful nesting | Both Male and Female | Hatchling | Not Reported | Sierra Madre Oriental, Nuevo Leon | Exposure Factor Datasets | MEXICO |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 2.24 | mean fledging rate for pairs fledging >1 young; estimated over a 10 yr period | young fledged/pair | Both Male and Female | Adult | 42 | coastal habitats | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Error |
---|---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3.62 | mean number of eggs laid per nest attempt | eggs/clutch | Female | Adult | 84 nest attempts | Rankin Inlet, Hudson Bay (62 deg49'N, 92 deg05'W) | Exposure Factor Datasets | breeding | 0.59 SD |
Hatching Success | 87% | ratio of total eggs hatched to total eggs produced | % | Both Male and Female | Hatchling | 101 pairs | Rankin Inlet, Hudson Bay (62 deg49'N, 92 deg05'W) | Exposure Factor Datasets | breeding |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|---|
Longevity | 12-03 | from USFWS Bird Banding Laboratory data | yr-mo | Not Reported | Adult | 321 band recoveries | Exposure Factor Datasets | USA |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3.21 | eggs/nest | Female | Adult | 24 nests | Southern Germany | Exposure Factor Datasets | GERMANY |
American Kestrel (Falco sparverius)
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | body weight at hatch | g | Both Male and Female | Hatchling | Not Reported | Sagehen Creek Field Station | Exposure Factor Datasets | Nevada, Sierra |
Age at Fledging, Metamorphosis, Weaning | d | Both Male and Female | Fledgling | Not Reported | 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 |
---|---|---|---|---|---|---|---|---|---|
Territory Size | 1.4 | average diameter of territories | km | Both Male and Female | Adult | 16 | southcentral area, agricultural lands | Exposure Factor Datasets | wintering |
Population Density | individuals per 52 km^2 | Both Male and Female | Adult | Not Reported | southcentral area, agricultural lands | Exposure Factor Datasets | wintering |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 3.1 | fledged/active nest | Both Male and Female | Fledgling | 36 nests | Great Basin (1260-2340 m) | Exposure Factor Datasets | Lassen | |
Time of Mating/ Laying | May 22 | median date of laying | Female | Adult | 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 | Condition | Error |
---|---|---|---|---|---|---|---|---|---|---|
Body Fat (total or %) | 8.51 | percent body fat calculated from total body electrical conductivity | % | Female | Adult | 13 | Cape May | Exposure Factor Datasets | migrating | 2.00 SE |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
---|---|---|---|---|---|---|---|---|---|
Dietary Composition | mammal (57%), insect (42%), other (1%) | percent composition of sample pellets (by volume) | Both Male and Female | Adult | 59 pellets | agricultural lands | Exposure Factor Datasets | Yolo | breeding |
Dietary Composition | mammal (43%), insect (51%), other (6%) | percent composition of sample pellets (by volume) | Both Male and Female | Adult | 71 pellets | agricultural lands | Exposure Factor Datasets | Yolo | breeding |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|---|
Surface Area | 7.15 x 10E-3 | ventral surface area | m^2 | Not Reported | Adult | Not Reported | Exposure Factor Datasets | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Territory Size | observed range of movement, based on observations of individuals | mi^2 | Not Reported | Adult | 8 birds | Superior Township | Exposure Factor Datasets | |
Fledging or Weaning Rate | 4.2 | number of fledglings produced per pair | fledglings/pair | Not Reported | Fledgling | 10 nests | Jackson Hole | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
---|---|---|---|---|---|---|---|---|
Body Fat (total or %) | mean percent body fat as measured by fat extraction from April to September | % | Male | Adult | 14 | Cache county | Exposure Factor Datasets | premigratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|---|
Longevity | 11-07 | from USFWS Bird Banding Laboratory data | yr-mo | Not Reported | Adult | 1832 band recoveries | Exposure Factor Datasets | USA |
Mourning Dove (Zenaida macroura)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Population Density | 0.02 | density of nests | nests/ha | Both Male and Female | Adult | 15 plots | Idaho National Engineering Laboratory | Exposure Factor Datasets |
Fledging or Weaning Rate | 75% | proportion of active nests that fledged young | Both Male and Female | Adult | 24 nests | Idaho National Engineering Laboratory | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 49.4% | proportion of active nests that successfully fledged young | Both Male and Female | Fledgling | 524 nests | Prairie Island Nuclear Generating Plant | Exposure Factor Datasets |
Fledging or Weaning Rate | 1.8 | mean number of young fledged per successful nest | Both Male and Female | Fledgling | 358 nests | Prairie Island Nuclear Generating Plant | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | 2 | clutch size in 97.2% of observed nests | Female | Adult | 1203 nests | J. Clark Salyer National Wildlife Refuge | Exposure Factor Datasets |
Growth Rate | see figures | growth rates of nestling weight, body length, wing chord, tail length, 6th primary | Both Male and Female | Nestling | 178 birds | J. Clark Salyer National Wildlife Refuge | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|
Dietary Composition | review | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets | CANADA, MEXICO, USA | |
Age at Fledging, Metamorphosis, Weaning | 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 | California Counties |
---|---|---|---|---|---|---|---|---|---|
Hatching Success | 67.1% | percent of eggs laid that hatched | % | Not Reported | Hatchling | Not Reported | near Bakersfield | Exposure Factor Datasets | Kern |
Fledging or Weaning Rate | 1.87 | average number of fledglings per successful nest | fledglings/nest | Not Reported | Fledgling | 185 successful nests | near Bakersfield | Exposure Factor Datasets | Kern |
Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|
Age at Fledging, Metamorphosis, Weaning | d | Not Reported | Fledgling | 136 nests | near Auburn | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Time of Nesting | March-September | period of active nesting | Both Male and Female | Adult | 648 nests | Texas A&M College campus | Exposure Factor Datasets | |
Population Density | 165 | peak monthly nesting density in study area | nests/81 acres | Both Male and Female | Adult | 648 nests | Texas A&M College campus | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Foraging Distance | distance flown from night roosts to feeding sites | km | Not Reported | Not Reported | Not Reported | Jackson County (elev. 430 m) | Exposure Factor Datasets |
Burrowing Owl (Athene cunicularia formerly Speotyto cunicularia)
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | eggs/clutch | Female | Adult | 4 burrows | Umatillo and Morrow counties | Exposure Factor Datasets | |
Hatching Success | based on number of young observed at burrow | % | Both Male and Female | Hatchling | 4 burrows | Umatillo and Morrow counties | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 4.38 | mean productivity | chicks/nesting territory | Both Male and Female | Adult | 33 nests | Rocky Mountain Arsenal National Wildlife Area | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Time of Fledging or Metamorphosis | September | period by which fledging is complete | Both Male and Female | Adult | 18 birds | Oakland Airport | Exposure Factor Datasets |
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 |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|
Age at Fledging, Metamorphosis, Weaning | 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 |
---|---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 1.5 | mean fledging rate in artificial burrows | fledglings/nest | Not Reported | Juvenile | 8 clutches, 66 eggs | New Mexico State University | Exposure Factor Datasets | 1.5 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 |
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 |
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 |
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 |
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 | 64.0 | estimated probability of an egg surviving to hatch in pasture areas | % | Not Reported | Embryo | 25 clutches | Archbold Biological Station | Exposure Factor Datasets | 30.1 SD |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 6.39 | average clutch size, 4 years | eggs/clutch | Female | Adult | 77 pairs | Pawnee National Grassland | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Survival/ Mortality | 64 | overall nestling survival rate | % | Not Reported | Nestling | 90 nests | Lawton, Comanche County | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Hatching Success | 33.8 | percent of eggs that produced hatchlings by the day after the first hatch | % | Not Reported | Hatchling | 24 clutches | Archbold Biological Station, Highlands County | Exposure Factor Datasets | 47.6 SD |
Exposure Endpoint Type | Endpoint Value | Location | Type | Countries |
---|---|---|---|---|
Clutch or Litter Size | review | Exposure Factor Datasets | CANADA, USA |
Bell's Vireo (Vireo bellii)
Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
---|---|---|---|---|---|---|---|
Body Weight - Mean | g | Male | Adult | 3 birds | Bloomington | Exposure Factor Datasets | feeding young |
Song Sparrow (Melospiza melodia)
Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
---|---|---|---|---|---|---|---|---|
Population Density | pairs/100 acres | Both Male and Female | Adult | Not Reported | San Pablo Marsh; San Francisco Bay | Exposure Factor Datasets | Contra Costa | breeding |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 10.1 | number of eggs fertilized | Female | Adult, Both Adults and Juveniles | 96 males | Mandarte Island | Exposure Factor Datasets | CANADA | 0.97 |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Home Range | 125 | median | m | Male | Adult | nr | Point Reyes National Seashore | Exposure Factor Datasets | Marin |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3.58; 3.42 | Both Male and Female | Adult | 140; 89 | Mandarte Island | Exposure Factor Datasets | CANADA | 0.1; 0.19 |
Western Meadowlark (Sturnella neglecta)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Clutches or Litters per year | 2 | usual number of nesting attempts per year | nests/yr | Female | Adult | Not Reported | Exposure Factor Datasets |
Western Grebe (Aechmophorus occidentalis)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Population Density | 2400 | annual number of individuals censused | birds/lake | Both Male and Female | Not Reported | 1 lake | Eagle Lake, 42 km NW of Susanville | Exposure Factor Datasets | Lassen |
Brown Pelican (Pelecanus occidentalis)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 2.85 | mean clutch size | eggs | Female | Adult | 89 clutches | Cape Romain National Wildlife Refuge | Exposure Factor Datasets |
Double-crested Cormorant (Phalacrocorax auritus)
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Metabolic Rate | oxygen consumption during brooding period (to about 2 wks of age) | cm^3/g BW/hr | Both Male and Female | Nestling | Not Reported | Duck Island, Isle of Shoals (43 deg. 00'N, 70 deg 35'W) | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Time of Nesting | April-June | period during which nest initiations were observed | Both Male and Female | Adult | 296-424 nests/year | San Francisco Bay estuary | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 2162.2 | body weight | g | Female | Adult | 41 | Exposure Factor Datasets | 29.8 SE |