Birds
American Kestrel (Falco sparverius)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
---|---|---|---|---|---|---|---|---|
Population Density | 50 | individuals in 175 km2 | Both Male and Female | Adult | 1 study area | agricultural lands, woodlots, meadows | Exposure Factor Datasets | Breeding |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|
Growth Rate | 0.250 | growth rate of body weight in parent-reared birds | Male | Nestling | 11 birds | Exposure Factor Datasets | Laboratory | |
Growth Rate | 0.239 | growth rate of body weight in parent-reared birds | Female | Nestling | 8 birds | Exposure Factor Datasets | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 4.4 | mean clutch size (4 sample years) | eggs/clutch | Female | Adult | 7-23 nests/year | Lucas and Wayne Counties (40deg57'N, 93deg18'W) | Exposure Factor Datasets |
Fledging or Weaning Rate | 89% | mean percent of young hatched that fledged (4 sample years) | % | Not Reported | Juvenile | 148 hatchlings | Lucas and Wayne Counties (40deg57'N, 93deg18'W) | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 98 | of chicks that hatched | % | Both Male and Female | Fledgling | 150 | Sagehen Creek Field Station | Exposure Factor Datasets | Nevada, Sierra |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|
Time of Molt | July-October/November | period of molt | Both Male and Female | Adult | Not Reported | throughout USA | Exposure Factor Datasets | USA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Time of Migration or Dispersal | February (peak) | period of spring migration of individuals fledged in northern CA, or at high elevations | Both Male and Female | Both Adults and Juveniles | Not Reported | throughout state | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | 4.23 | eggs | Female | Adult | 13 clutches | Berks county | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
---|---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 5.0 | three year mean fledging rate | number of fledglings per nest | Both Male and Female | Fledgling | 28 pairs | rural and urban lands | Exposure Factor Datasets | Breeding |
Mourning Dove (Zenaida macroura)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 7.04 | mean body weight | g | Both Male and Female | Hatchling | 28 nestlings | Fremont and Waterloo areas | Exposure Factor Datasets | day of hatch |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 125 | average body weight | g | Both Male and Female | Adult | Not Reported | Gray Lodge State Refuge | Exposure Factor Datasets | Butte |
Fledging or Weaning Rate | 64.5 | proportion of attempted nests that fledged at least one young | % | Both Male and Female | Adult | 220 nests | 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 | 3.3 | mean breeding density | Both Male and Female | Adult | ten 100 ac plots | southwest and northeast areas | Exposure Factor Datasets |
Fledging or Weaning Rate | 48% | proportion of nests that were successful | Both Male and Female | Adult | 73 nests | southwest and northeast areas | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|
Clutches or Litters per year | review | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets | CANADA, MEXICO, USA | |
Growth Rate | 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 | Lab |
---|---|---|---|---|---|---|---|---|---|
Food Ingestion Rate | 16.1% | daily food ingestion as percent of body weight | % | Not Reported | Not Reported | 22 birds | Exposure Factor Datasets | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|---|
Dietary Composition | green foxtail (39.8%), yellow foxtail (21.4%), wheat (19.6%), black bindweed (5.1%), maize (4.7%), proso millet (3.0%), flax (2.0%), field mustard (1.6%), lamb's quarters (1.2%) | percent occurrence in diet by weight | % | Not Reported | Adult | 120 birds | captured in Grand Forks County, ND | Exposure Factor Datasets | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 37.3 | percent of all nests in which nestlings reached 10 d of age | % | Both Male and Female | Adult | 83 nests | Davisdale Wildlife Area (39deg01.3'N,92deg37.5'W) | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Population Density | 0 to 5 (+/-8) | mean nest densities in untilled corn or soybean fields | nests/100 ha | Both Male and Female | Adult | 8-9 fields | Adair County | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Time of Fledging or Metamorphosis | 15 | age at fledging | d | Both Male and Female | Fledgling | 35 broods | east-central area | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Dietary Composition | seeds (96.1%), green vegetation (1.1%), insects (2.8%) | percent of diet by volume based on crop analysis | % | Not Reported | Not Reported | 38 birds | New Mexico State University Ranch | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 108 | average body weight | g | Not Reported | Not Reported | 11 birds | captured in Santa Monica Mountains | Exposure Factor Datasets | 14.7 | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|---|
Population Density | figures | Figures of yearly and monthly nest density estimates | nests/ha | Both Male and Female | Adult | 48-158 transects | near Guanica and Cabo Rojo | Exposure Factor Datasets | PUERTO RICO |
Burrowing Owl (Athene cunicularia formerly Speotyto cunicularia)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Dietary Composition | mammals (85), insects (170), birds (3), spiders (0), reptiles (1) | number of prey items found in sample pellets | Both Male and Female | Both Adults and Juveniles | 60 pellets | Crooked River National Grassland | Exposure Factor Datasets |
Dietary Composition | mammals (28), insects (22) | number of prey items found in sample pellets | Both Male and Female | Both Adults and Juveniles | 20 pellets | Crooked River National Grassland | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Body Weight - Mean | 168.0 | g | Female | Not Reported | 10 birds | Oakland Airport | Exposure Factor Datasets |
Territory Size | 1.98 | ac | Both Male and Female | Adult | 6 pairs | Oakland Airport | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 2.5 | mean number of chicks per nest | chicks/nest | Both Male and Female | Adult | 11 pairs | Moffett Air Force Base | Exposure Factor Datasets | Santa Clara |
Hatching Success | 78 | percent of pairs hatching at least one chick | % | Both Male and Female | Adult | 9 pairs | Shoreline Park | Exposure Factor Datasets | Santa Clara |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 158.6 | body weight | g | Male | Adult | 13 | Exposure Factor Datasets | Laboratory | |
Body Weight - Mean | 150.6 | body weight | g | Female | Adult | 15 | Exposure Factor Datasets | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Dietary Composition | Dipodomys sp (8-18%), Perognathus sp (4-29%), insects (53-75%), crayfish (0-9%), reptiles (0-5%), birds (0-1%) | frequency of occurence in pellets | Both Male and Female | Adult | 3 burrows | Coachella Valley | Exposure Factor Datasets |
Great Horned Owl (Bubo virginianus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|
Food Ingestion Rate | 26.37 | daily food intake on a turkey poult diet, dry weight basis | g/kg/d | Not Reported | Adult | 26 owl days | Exposure Factor Datasets | 6.33 SD | Laboratory | |
Body Weight - Mean | 1615 | mean of averaged body weights (10-13 weighings/bird) | g | Not Reported | Adult | 4 birds | Exposure Factor Datasets | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
---|---|---|---|---|---|---|---|---|---|
Time of Mating/ Laying | February (peak), March (end) | egg laying dates | Female | Adult | 16 nests | Pima and Pinal Counties | Exposure Factor Datasets | breeding | |
Clutch or Litter Size | 2.5 | mean clutch size | eggs/clutch | Female | Adult | 16 nests | Pima and Pinal Counties | Exposure Factor Datasets | breeding |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Dietary Composition | white-footed mice (58.2%), meadow mice (28.0%), other small mammals (2.8%), medium sized mammals (5.1%), gamebirds and sm-med sized birds (4.8%), other birds (1.2%) | percent occurrence of prey items in pellets | Not Reported | Not Reported | 297 pellets from 14 owls | Superior township | Exposure Factor Datasets |
Time of Nesting | Mar 12 - Jun 4 | period from earliest egg laying date to date of latest brood departure | Both Male and Female | Adult | 4 nests | Jackson Hole | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Dietary Composition | cottontail (61.1%), woodrat (17.9%), kangaroo rat (4.5%), pocket gopher (4.3%), gopher snake (3.7%), ground squirrel (2.4%), other spp (birds, reptiles, amphibians, invertebrates; 6.1%) | percent occurrence by weight in pellets | Not Reported | Not Reported | 654 pellets, 1471 prey items | San Joaquin Experimental Range | Exposure Factor Datasets | Madera |
Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|
Population Density | pairs/mi^2 | Both Male and Female | Adult | 12-22 pairs (3 study years) | southern Green County | Exposure Factor Datasets |
Northern Flicker (Colaptes auratus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 140 | average body weight at time of capture | g | Not Reported | Adult | 4 birds | Lakewood, Jefferson County | 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, USA | |
Population Density | 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 |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 8 | first clutch size | eggs/clutch | Female | Adult | 1 nest | Asheville, Buncombe County | Exposure Factor Datasets |
Willow Flycatcher (Empidonax traillii)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Territory Size | range of territory sizes during the breeding season | m^2 | Both Male and Female | Adult | 15 birds | Sierra National Forest | Exposure Factor Datasets | Fresno | |
Hatching Success | 75% | hatching success among total eggs laid | Both Male and Female | Hatchling | 8 nests | Sierra National Forest | Exposure Factor Datasets | Fresno |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|---|
Territory Size | 3000 | average territory size of paired males based on observed perch locations | m^2 | Male | Adult | 8 territories | Perazzo Meadows, Lacey Valley (32 km NW of Truckee) | Exposure Factor Datasets | Sierra | 2000 SD |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Time of Migration or Dispersal | mid-May (onset), June 8 (date of last capture) | spring passage | Not Reported | Adult | 42 captures | Rio Grand Nature Center (35deg07'N, 106deg41'W); Bosque del Apache National Wildlife Refuge (33deg48'N, 106deg52'W) | Exposure Factor Datasets |
Time of Migration or Dispersal | mid-August (onset), September 16 (date of last capture) | fall migration | Not Reported | Adult | 42 captures | Rio Grand Nature Center (35deg07'N, 106deg41'W); Bosque del Apache National Wildlife Refuge (33deg48'N, 106deg52'W) | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3.68 | mean clutch size in first nests | eggs/nest | Female | Adult | 31 nests | Wooster and Toledo, OH; Fremont, NE | Exposure Factor Datasets | 0.1 SE |
Bushtit (Psaltriparus minumus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Time of Fledging or Metamorphosis | 14 | age at which young left the nest | d | Not Reported | Not Reported | 1 brood | Stanford University Campus | Exposure Factor Datasets | Santa Clara |
Loggerhead Shrike (Lanius ludovicianus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Hatching Success | 4.4 | average number of young hatched per nest, 2 years | hatchlings/nest | Not Reported | Hatchling | 37 nests | York County | Exposure Factor Datasets | 1.8 SD |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 6.1 | average number of eggs per clutch, 2 years | eggs/clutch | Female | Adult | 84 clutches | Ada, Elmoor, Owyhee Counties | Exposure Factor Datasets | 0.8 SD |
Fledging or Weaning Rate | 5.1 | average number of fledglings per sucessful pair | fledglings/pair | Not Reported | Fledgling | 65 pairs | Ada, Elmoor, Owyhee Counties | Exposure Factor Datasets | 1.5 SD |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Survival/ Mortality | 0.47 | annual adult survival (based on reoccupancy rate from the previous year), over 3 years | Both Male and Female | Adult | 16-37 territories/year | southern Minnesota | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|---|
Population Density | 90-96 | range of densities over 2 sampling years | individuals/ 12 study blocks | Not Reported | Adult | 2 sample years | southeastern Alberta | Exposure Factor Datasets | CANADA |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Territory Size | range of post-breeding territory size | ha | Not Reported | Adult | 21 territories | Archbold Biological Station, Lake Placid | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | average clutch sizes, 2 years | eggs/clutch | Female | Adult | 27-52 pairs/yr | eastern Ontario, Quebec | Exposure Factor Datasets | CANADA |
Exposure Endpoint Type | Endpoint Value | Location | Type | Countries |
---|---|---|---|---|
Time of Migration or Dispersal | review | Exposure Factor Datasets | CANADA, USA |
Bell's Vireo (Vireo bellii)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Territory Size | range in sizes of areas used by nesting pairs | ac | Both Male and Female | Adult | 9 pairs | Lawrence | Exposure Factor Datasets | |
Clutch or Litter Size | 3.39 | mean clutch size (over 2 years) | eggs/clutch | Female | Adult | 33 records | Lawrence | 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 | MEXICO, USA | |
Time of Mating/ Laying | review | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets | MEXICO, USA |
Song Sparrow (Melospiza melodia)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|
Hatching Success | % | Both Male and Female | Adult | 4733 eggs | Mandarte Island | Exposure Factor Datasets | CANADA | |
Time of Mating/ Laying | 24 Feb-19 April | Both Male and Female | Adult | Not Reported | Mandarte island | Exposure Factor Datasets | CANADA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Countries |
---|---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 16.69 | with supplemental food at d 6 | g | Not Reported | Chick | 31 | Exposure Factor Datasets | 6 d | CANADA | |
Body Weight - Mean | 15.43 | without suppl. food d 6 | g | Not Reported | Chick | 44 | Exposure Factor Datasets | 6 d | CANADA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 2.77 | no suppl. food | eggs/clutch | Both Male and Female | Adult | 56 pairs without suppl. food | Mandarte island | Exposure Factor Datasets | CANADA | 0.15 SE |
Body Weight - Mean | 3.08 | egg mass; no difference between fed and non-fed fenales | g | Female | Adult | 15 fed and 34 non-fed females | Mandarte island | Exposure Factor Datasets | CANADA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 3.88 | mean number of young fledged per successful nest | fledglings/nest | Both Male and Female | Fledgling | 32 nests | southwestern Ontario | Exposure Factor Datasets | CANADA | 1.22 |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|---|---|
Territory Size | 1745 | mean territory size, measured by song playbacks and observations of border disputes | m^2 | Male | Adult | 6 birds | Reifel Island, Delta, British Columbia | Exposure Factor Datasets | CANADA | 406 SD |
Western Meadowlark (Sturnella neglecta)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Dietary Composition | Acridid, adult Coleoptera, Tettigoniid, larval Lepidoptera, Hymenoptera, Other, Hemipteran, spider | percent of arthropod taxa in the diet, listed in order of decreasing frequency | Not Reported | Adult | 95 birds | Arapaho Prairie | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Growth Rate | 7 | average increase in body weight | g/d | Not Reported | Nestling | 2 nests | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Territory Size | 12,406.8 | average territory size in mated birds | m^2 | Male | Adult | 17 birds | Boulder | 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 |
---|---|---|---|---|---|---|---|---|---|
Food Ingestion Rate | 22.4 | estimated mass of fish consumed daily, based on stomach contents | g | Not Reported | Adult | 1 bird | Clear Lake | Exposure Factor Datasets | Lake |
Brown Pelican (Pelecanus occidentalis)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Growth Rate | see figure | daily growth rates of wild nestlings | Not Reported | Nestling | varied | Tarpon Key | Exposure Factor Datasets |
Double-crested Cormorant (Phalacrocorax auritus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|---|
Metabolic Rate | 74 | measured at night over temperature range -10 to 45 C | cm^3 O2/g BW/hr | Not Reported | Both Adults and Juveniles | 5 cormorants | Exposure Factor Datasets | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|
Dietary Composition | herring (25%), sculpin (92%), flounder (8%), anemones (8%), snails (17%), mussels (33%), amphipods (25%), isopods (17%), benthic shrimp (25%), crabs (25%), bryozoans (58%), algae (50%) | frequency of occurrence of food items in stomach contents | Not Reported | Both Adults and Juveniles | 12 stomachs | Quoddy Region, New Brunswick | Exposure Factor Datasets | CANADA |
Mallard duck (Anas platyrhynchos)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Error |
---|---|---|---|---|---|---|---|---|---|
Body Fat (total or %) | 168 | g (lipid) | Female | Both Adults and Juveniles | 32 | Mingo Basin | Exposure Factor Datasets | initiation prebasic molt | 8 SE |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
---|---|---|---|---|---|---|---|---|---|
Home Range | 210 | Study area was 67% upland forest, 33% lakes and wetlands. | ha | Female | Adult | 12 | western edge of Chippewa National Forest, Beltrami Co. | Exposure Factor Datasets | breeding |
Exposure Endpoint Type | Endpoint Value | Units | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Error |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 8.96 | eggs | Adult | 78 | prairie pothole region of North Dakota | Exposure Factor Datasets | after second year | 1.38 SE |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Time of Migration or Dispersal | late February/early March (begin) to mid April (end) | southern part of U.S. breeding range | Exposure Factor Datasets | |||||
Survival/ Mortality | 61 | These are average survival rates. For breakdown by region, see table 16, p. 27. | % | Male | Adult | not reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Home Range | 0.62 | For 1990. Home range defined as area that broods restricted their activities to during rearing period. | km2 | Not Reported | Nestling | 14 broods | Lower Klamath National Wildlife Refuge | Exposure Factor Datasets | 0.21 SE |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|
Survival/ Mortality | 0.782 | fall-winter survival (proportion) | Male | Adult | 18,650 | Alberta, Saskatchewan, Manitoba | Exposure Factor Datasets | CANADA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Hatching Success | 85.2% | proportion of observed nests with at least one successful hatch | Female | Adult | 209 | Tule Lake and Lower Klamath River National Wildlife Refuges | Exposure Factor Datasets | Modoc, Siskiyou |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Duration of Incubation or Gestation | 28 | d | Female | Adult | 18 | Adirondack Mountains | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|
Survival/ Mortality | 0.6279 | survival estimates for birds banded 1966-1985 | Male | Adult | 18,289 | Northern California | Exposure Factor Datasets | 0.009 (SE) |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
---|---|---|---|---|---|---|---|---|---|
Time of Nesting | April-June | time from earliest clutch laid to last clutch hatched | Female | Adult | Not Reported | Conaway Ranch | Exposure Factor Datasets | Yolo | breeding |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Error |
---|---|---|---|---|---|---|---|---|---|
Survival/ Mortality | 0.84 | mean 17-day survival rate | Not Reported | Juvenile | 223 | Northern Prairie Wildlife Research Center, Jamestown (46deg53'N, 98deg38'W) | Exposure Factor Datasets | 17 d | 0.025 SE |
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 | 6.33 | mean body weight at hatching | g | Both Male and Female | Hatchling | 47 | Fuente de Piedra lake, s. Spain | Exposure Factor Datasets | SPAIN | 0.56 SD |
Killdeer (Charadrius vociferus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 71.1 | body weight of an individual bird | g | Not Reported | Adult | 1 bird | Exposure Factor Datasets | Laboratory |
Least Tern (Sterna antillarum)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 0.1-1.4 | range of mean fledging success over 3 study years | fledglings/nest | Not Reported | Juvenile | 6-18 nests/study year | Yellowstone River | Exposure Factor Datasets |
Peregrine Falcon (Falco peregrinus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
---|---|---|---|---|---|---|---|---|
Dietary Composition | waterfowl (50%), shorebirds (10-12%), small gulls (10-15%), small land birds (20%), small mammals (2-3%) | dietary contribution of groups of species, by weight, based on collection of remains at nests | Both Male and Female | Adult, Chick | 329 prey items | Yukon River | Exposure Factor Datasets | breeding |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 41.7 | mean egg weight | g | Not Reported | Embryo | 13 | Thelon River, Northwest Territories | Exposure Factor Datasets | CANADA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3.70 | average clutch size | eggs/clutch | Female | Adult | 77 clutches | Exposure Factor Datasets | CANADA, MEXICO, USA |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|
Population Density | review | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets | USA |
Ensatina (Ensatina eschscholtzii), Loggerhead Shrike (Lanius ludovicianus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Countries | Error |
---|---|---|---|---|---|---|---|---|---|---|---|
Growth Rate | 0.092 | change in snout-vent length measured between recaptures (>1000d) | mm/d | Female | Adult | Not Reported | Calaveras Big Trees State Park (elev., 1400m) | Exposure Factor Datasets | Calaveras | USA | 0.0071 |