Birds
Mallard duck (Anas platyrhynchos)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Duration of Incubation or Gestation | 24.5 | mean incubation period | d | Female | Adult | 66 nests | near Devil's Lake (48deg10'N, 98deg90'W) | Exposure Factor Datasets | 4.1 2SD |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Error |
---|---|---|---|---|---|---|---|---|---|
Body Fat (total or %) | 134 | g (lipid) | Female | Both Adults and Juveniles | 12 | Mingo Basin | Exposure Factor Datasets | alternate plumate - early migrants, paired | 7 SE |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Home Range | 540 | ha | Female | Adult | 8 | Bemidji, Beltrami Co. | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Sample Size | Location | Type |
---|---|---|---|---|
Time of Nesting | April 26 - June 6 | Not Reported | prairie pothole region of North Dakota | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 10.3 | eggs | Female | Adult | 46 nests | prairie pothole region of North Dakota | Exposure Factor Datasets | 1.1 SD |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Dietary Composition | corn (51.7%), milo (2.6%), other plant (16.5%), mollusca (snails, clams; 2.9%), insecta (0.3%) | food item occurrence in esophageal contents, expressed as aggregate percent dry weight | Not Reported | Not Reported | 68 birds | along Platte River, between Lexington and Gibbon, Nebraska | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
---|---|---|---|---|---|---|---|---|---|
Population Density | 0.25 | For explanation of classifications, see p. 11 (classifications are Kern NWR, hunting clubs, etc). | birds/ha | Not Reported | Not Reported | Not Reported | hunting clubs | Exposure Factor Datasets | wintering birds |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Lab |
---|---|---|---|---|---|---|---|---|---|
Growth Rate | 1.81%/d | maximum growth rate relative to asymptotic weight | Male | Juvenile | 48 | Exposure Factor Datasets | 0-154 d | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
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 |
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 |
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 |
Clapper Rail (Rallus longirostris)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 261.7 | mean body weight in fresh water acclimated birds | g | Not Reported | Adult | 8 | High Island, Chambers Co. | Exposure Factor Datasets | 8.4 |
Snowy Plover (Charadrius nivosus formerly Charadrius alexandrinus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 42.2 | mean body weight | g | Female | Adult | 158 | Fuente de Piedra lake, s. Spain | Exposure Factor Datasets | SPAIN | 3.0 SD |
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 |
Killdeer (Charadrius vociferus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Population Density | 30.2 | estimated breeding density in bare cultivated field habitat (43 ha) | pairs/100 ha | Both Male and Female | Adult | Not Reported | St. Paul Campus, Univ. of MN | Exposure Factor Datasets |
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 |
Least Tern (Sterna antillarum)
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | estimated fledgling production among 4 colonies | fledglings/breeding pairs | Not Reported | Fledgling | 26-140 pairs/colony | Aransas and San Patricio Counties | Exposure Factor Datasets |
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 |
Peregrine Falcon (Falco peregrinus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3.39 | mean clutch size | eggs/clutch | Female | Adult | 18 clutches | Exposure Factor Datasets | |
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 |
---|---|---|---|---|---|---|
Clutch or Litter Size | review | Female | Adult | Not Reported | Exposure Factor Datasets | |
Fledging or Weaning Rate | review | Both Male and Female | Fledgling | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 2.46 | fledglings/brood | Both Male and Female | Fledgling | 48 broods | Exposure Factor Datasets | GERMANY |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Population Density | review | review of factors controlling population density | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | 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 |
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 |
American Kestrel (Falco sparverius)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 4 | average clutch size | eggs/clutch | Female | Adult | 42 | Sagehen Creek Field Station | Exposure Factor Datasets | Nevada, Sierra |
Duration of Incubation or Gestation | d | Both Male and Female | Embryo | 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 | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|---|
Duration of Incubation or Gestation | 27 | mean number of days between 5th egg laid and 5th egg hatched | d | Both Male and Female | Embryo | 3 eggs | Exposure Factor Datasets | 0.58 SE | Laboratory | ||
Time of Mating/ Laying | March-May | period of laying | Female | Adult | Not Reported | Exposure Factor Datasets | breeding | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Time of Hatching or Parturition | June 21 | median hatching date | Both Male and Female | Hatchling | 27 pairs | Great Basin (elev. 1260-2340 m) | Exposure Factor Datasets | Lassen |
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 |
---|---|---|---|---|---|---|---|---|---|---|
Metabolic Rate | 23.06 | daily energy metabolism based on heart rate (30 C) and a linear regression equation for heart rate and volume of oxygen consumed | kcal/d | Not Reported | Adult | 1 | Exposure Factor Datasets | 1.03 SE | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
---|---|---|---|---|---|---|---|---|---|
Dietary Composition | mammal (39%), insect (60%), other (6%) | percent composition of sample pellets (by volume) | Both Male and Female | Adult | 95 pellets | agricultural lands | Exposure Factor Datasets | Yolo | breeding |
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 |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|---|
Metabolic Rate | 40.8 | existence metabolism as measured by the difference between food energy and energy in egesta of birds maintained at constant body mass for periods of 3 or more days | kcal/d | 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 during nesting, based on observations of individual or pair movements | mi^2 | Not Reported | Adult | 11 birds | Jackson Hole | Exposure Factor Datasets | |
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 |
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 | 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 |
Mourning Dove (Zenaida macroura)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | mean number of fledglings per successful nest (over three years) | Both Male and Female | Adult | 5-7 nests/yr | Idaho National Engineering Laboratory | Exposure Factor Datasets | |
Survival/ Mortality | 0.50 | survival rate from incubation to fledging (26 days) | Both Male and Female | Nestling | 24 nests | Idaho National Engineering Laboratory | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Dietary Composition | waste rice, milo, watergrass, yellow star thistle, Turkey mullein seeds, waste wheat, canary grass, safflower, johnson grass | food items in crop contents, in order of importance | Not Reported | Adult | 22 birds | Gray Lodge State Refuge | Exposure Factor Datasets | Butte | |
Duration of Incubation or Gestation | 14-15 | incubation period | d | Both Male and Female | Embryo | 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 |
---|---|---|---|---|---|---|---|
Population Density | 1.8 | nesting pairs per 100 trees checked | Both Male and Female | Adult | 4 orchards | Rufus Woods Lake area | Exposure Factor Datasets |
Clutch or Litter Size | 1.8 | mean number of eggs laid per nesting attempt | Female | Adult | 123 nests | Rufus Woods Lake area | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|
Time of Mating/ Laying | review | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets | CANADA, MEXICO, USA | |
Time of Molt | 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 |
---|---|---|---|---|---|---|---|---|---|
Time of Nesting | Mar-Sep | period from beginning to end of nesting | Both Male and Female | Adult | 335 nest attempts | near Bakersfield | Exposure Factor Datasets | Kern | |
Population Density | 21.7 | average number of birds per 100 miles of survey route | birds/100 mi | Not Reported | Not Reported | 1000 mi surveyed/mo | near Bakersfield | Exposure Factor Datasets | Kern |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Dietary Composition | haygrazer (15-96%), wheat (trace-31%), pricklepoppy (trace-19%), panic grass (trace-33%), maize (3-76%), pigweed (trace-14%), sunflower (trace-10%), spurge (trace-17%), wild bean (trace-44%), others (1-6%) | percent consumption by weight of 9 most frequently eaten foods (range over 7 months) | % | Not Reported | Not Reported | Not Reported | Jackson County (elev. 430 m) | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Clutches or Litters per year | 4.4 | mean number of nest attempts made per pair per year | nests/yr | Both Male and Female | Adult | 7 marked pairs | Texas A&M College campus | Exposure Factor Datasets |
Fledging or Weaning Rate | 6.7 | mean number of fledglings produced per adult female | fledglings/female | Both Male and Female | Fledgling | 7 marked pairs | Texas A&M College campus | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Error |
---|---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 114.3 | mean body weight | g | Female | Juvenile | 5 birds | Exposure Factor Datasets | 131 days | 3.3 SE |
Burrowing Owl (Athene cunicularia formerly Speotyto cunicularia)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Dietary Composition | vertebrate (89.9%), invertebrate (10.1%) | diet composition by percent biomass in pellets | Both Male and Female | Adult | 769 pellets | Columbia Basin | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 156 | g | Female | Adult | 31 birds | Rocky Mountain Arsenal National Wildlife Area | Exposure Factor Datasets | 3.6 (SE) | |
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 Nesting | April - June | Both Male and Female | Adult | 18 birds | Oakland Airport | Exposure Factor Datasets | |
Time of Fledging or Metamorphosis | September | period by which fledging is complete | Both Male and Female | Adult | 18 birds | Oakland Airport | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|
Hatching Success | 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 | Error |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 8.8 | mean clutch size in artificial burrows | eggs/clutch | Female | Adult | 8 clutches, 66 eggs | New Mexico State University | Exposure Factor Datasets | 1.8 SE |
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 |
Exposure Endpoint Type | 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 |
Great Horned Owl (Bubo virginianus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|---|
Metabolic Rate | 0.566 | mean standard metabolic rate | ml o^2/g bw/hr | Male | Adult | 4 birds | Exposure Factor Datasets | fasted | 0.080 | Laboratory | |
Body Weight - Mean | 1,588 | mean body weight | g | Female | Adult | 2 birds | Exposure Factor Datasets | fasted | 147 | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|---|
Food Ingestion Rate | 62.6 | average daily consumption on an all mouse diet | g/d | Not Reported | Adult | 1 owl | collected in Larimer County, CO | Exposure Factor Datasets | Laboratory |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Population Density | range of numbers of individual owls counted annually on a 1476 sq km study site | individuals/study site | 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 (3.6%), meadow mice (64.5%), shrews (0.3%), weasels (0.6%), red squirrel (0.3%), pocket gopher (23.5%), snowshoe rabbit (2.8%), ruffed grouse (1.4%) sage grouse (0.3%), mallard (0.6%), sm-med sized birds (1.4%), sucker (0.8%) | percent occurrence of prey items in diet during nesting | % | Not Reported | Not Reported | 361 food items, 4 nests | Jackson Hole | Exposure Factor Datasets | ||
Food Ingestion Rate | averages of food amounts eaten per day | g | Both Male and Female | Not Reported | 2 birds | Exposure Factor Datasets | captive | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|---|---|
Territory Size | 4.83 | mean territory size of territorial pairs | square km | Both Male and Female | Adult | 16 territories | Kluane Lake (60 deg57'N, 138deg12'W), Yukon | Exposure Factor Datasets | CANADA | 0.40 SE |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Dietary Composition | Sylvilagus spp. (1.0%), unident. lagomorphs (0.2%), Peromyscus maniculatus (42.%), Microtus monatus (23.7%), unident. rodents (2.9%), Myotis spp. (1.9%), unident. mammal (1.5%), Podiceps nigricollis (1.0%), unident. rail (0.2%), Larus californicus (1.7%), unident. owl (0.4%), unident. blackbird (0.4%), unident. large bird (4.6%), unident. medium bird (1.2%), unident. small bird (6.9%), unident. vertebrate (1.0%), insects (8.3%), scorpions (0.4%) | percent occurence of prey items in pellets | Not Reported | Not Reported | 219 pellets, 518 remains | Paoha Island, Mono Lake | Exposure Factor Datasets | Mono |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Time of Nesting | mid-Feb to Jun 20 | period from first territory selection to last brood fledged | Both Male and Female | Adult | 15 nests | south-central Montana | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|
Dietary Composition | rodents (98.5%), birds + insects + reptiles + lagomorphs (1.5%) | percent of prey types in diet (seasonal average) | Not Reported | Adult | 522 pellets | near Bariloche, northwest. Patagonia | Exposure Factor Datasets | ARGENTINA |
Northern Flicker (Colaptes auratus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 5.09 | average number of fledglings from clutches laid early in the breeding season (1990-1992, 1994) | fledglings/clutch | Not Reported | Fledgling | 11 clutches | New Concord, Muskingum County (40 deg, 00'N, 81 deg, 46'W) | Exposure Factor Datasets |
Fledging or Weaning Rate | 2.75 | average number of fledglings from clutches laid late in the breeding season (1990-1992, 1994) | fledglings/clutch | Not Reported | Fledgling | 4 clutches | New Concord, Muskingum County (40 deg, 00'N, 81 deg, 46'W) | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|
Growth Rate | review | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets | CANADA, USA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Population Density | 1.26 (20) | 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 |
Willow Flycatcher (Empidonax traillii)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Time of Migration or Dispersal | early to mid-June | timing of arrival of spring migrants | Both Male and Female | Adult | Not Reported | Perazzo Meadows, Lacey Valley (32 km NW of Truckee) | Exposure Factor Datasets | Sierra |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 18.2% | percent of parasitized nests with at least one fledgling | Not Reported | Fledgling | 11 nests | Illinois River, Arapahoe National Wildlife Refuge (elev. 2,500 m) | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
---|---|---|---|---|---|---|---|---|
Metabolic Rate | total daily energy expenditure | kJ/d | Female | Adult | 2-6 birds per breeding phase | Hudson Biological Reserve | Exposure Factor Datasets | breeding |
Bushtit (Psaltriparus minumus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|---|
Metabolic Rate | 3.96 | approximate basal rate of nocturnal oxygen consumption, measured at 30 deg C | cc O^2/g/h | Not Reported | Adult | 12 birds | captured at Occidental College, Los Angeles | Exposure Factor Datasets | Laboratory |
Loggerhead Shrike (Lanius ludovicianus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 1.4 | average number of fledglings produced per nest | fledglings/nest | Not Reported | Fledgling | 64 clutches, 245 eggs | Archbold Biological Station | Exposure Factor Datasets | 1.7 SD |
Exposure Endpoint Type | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|
Population Density | range of nesting density, 2 study areas | Both Male and Female | Adult | 10-19 pairs/study area | Ada, Elmore, Owyhee Counties | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Duration of Incubation or Gestation | 16.9 | average incubation period, 4 years | d | Both Male and Female | Embryo | 55 nests | Lawton, Comanche County | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|
Territory Size | 9.3 | ha | Both Male and Female | Adult | 10 pairs | Archbold Biological Station, Highlands County | Exposure Factor Datasets | 3.8 SD |
Exposure Endpoint Type | Endpoint Value | Life Cycle Stage | Location | Type | Countries |
---|---|---|---|---|---|
Body Weight - Mean | review | Both Adults and Juveniles | Exposure Factor Datasets | CANADA, USA |
Bell's Vireo (Vireo bellii)
Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific |
---|---|---|---|---|---|---|---|
Body Weight - Mean | g | Not Reported | Hatchling | 3 birds | Bloomington | Exposure Factor Datasets | day of hatch |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|
Hatching Success | review | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets | MEXICO, USA |
Song Sparrow (Melospiza melodia)
Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Countries |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | g | Female | Both Adults and Juveniles | 2-17 birds | Mandarte island | Exposure Factor Datasets | 9 - >90 wks | CANADA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Population Density | 0.02 | nest density | nests/ha | Both Male and Female | Adult | 4 nests | airports in east-central IL | Exposure Factor Datasets |
Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|
Age at Fledging, Metamorphosis, Weaning | d | Both Male and Female | Fledgling | 15 years | Mandarte island | Exposure Factor Datasets | CANADA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 16.81 | mean mass of nestlings with suppl. food 6 d old | g | Not Reported | Nestling | 48 nestlings | Mandarte island | Exposure Factor Datasets | CANADA | 0.3 SE |
Western Meadowlark (Sturnella neglecta)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 101.5 | mean body weight | g | Male | Adult | 8 birds | Exposure Factor Datasets | MEXICO |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 5.41 | mean size of clutches laid early (pre-May 1), mid (May 1-10), or late season (post-May 10) | eggs/clutch | Female | Adult | 41 nests | near Delta, Manitoba | Exposure Factor Datasets | CANADA | 0.14 SE |
Brown Pelican (Pelecanus occidentalis)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Hatching Success | 60.2% | percent of eggs producing downy young in succesful nests (nests producing at least one young) | Female | Adult | 133 nests | Cape Romain National Wildlife Refuge | Exposure Factor Datasets |
Double-crested Cormorant (Phalacrocorax auritus)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 2.3 | kg | Both Male and Female | Both Adults and Juveniles | 420 cormorants | east TX | Exposure Factor Datasets | 0.02 SE |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3.1+/- 0.1 to 3.2+/- 0.1 | mean number of eggs/nest (over 3 years) | Female | Adult | 263-312 nests/year | San Francisco Bay estuary | Exposure Factor Datasets |