Terrestrial birds
American Kestrel (Falco sparverius)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Duration of Incubation or Gestation | 30.9 | incubation period | d | Both Male and Female | Embryo | 2 clutches (8 eggs) | Berks county | Exposure Factor Datasets |
Survival/ Mortality | 78 | hatching success | % | Both Male and Female | Hatchling | 55 eggs (14 clutches) | Berks county | Exposure Factor Datasets |
Clutch or Litter Size | 4.23 | eggs | Female | Adult | 13 clutches | Berks county | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
---|---|---|---|---|---|---|---|---|
Population Density | 48 | individuals in 175 km2 | Both Male and Female | Both Adults and Juveniles | 1 study area | agricultural lands, woodlots, meadows | Exposure Factor Datasets | |
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 | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Population Density | 20 | number of individual kestrels counted annually on study site | individuals/1476 sq km | Both Male and Female | Adult | 4 years | Hanford Site, Benton and Franklin Counties | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 49% | mean percent of successful nests per year | % | Both Male and Female | Adult | 259 nesting attempts | Berks and Lehigh counties | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Time of Molt | May - September | Both Male and Female | Adult | Not Reported | Sagehen Creek Field Station | Exposure Factor Datasets | Nevada, Sierra | ||
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 | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 119.0 | g | Female | Adult | 72 | throughout USA | Exposure Factor Datasets | USA | |
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 | August (begin) | period of fall 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 |
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 | 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 | 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 |
---|---|---|---|---|---|---|---|---|---|
Time of Nesting | April 20-September 20 | period during which active nests were observed | Both Male and Female | Adult | 121 nests | Fremont and Waterloo areas | Exposure Factor Datasets | ||
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 |
---|---|---|---|---|---|---|---|---|---|
Age at Fledging, Metamorphosis, Weaning | 12-13 | age at which young leave nest | d | Both Male and Female | Fledgling | Not Reported | Gray Lodge State Refuge | Exposure Factor Datasets | Butte |
Body Weight - Mean | 125 | average body weight | g | Both Male and Female | Adult | Not Reported | Gray Lodge State Refuge | Exposure Factor Datasets | Butte |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 0.8 | mean number of young fledged per nesting attempt | Both Male and Female | Fledgling | 123 nests | Rufus Woods Lake area | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | review | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets | CANADA, MEXICO, USA | |
Clutches or Litters per year | review | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets | CANADA, MEXICO, USA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Age at Sexual Maturity | 93 | age at which birds became capable of breeding | d | Female | Yearling | 91 birds | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|
Food Ingestion Rate | 71 | intake based on analysis of crop contents | kcal/day/bird | Not Reported | Adult | 120 birds | captured in Grand Forks County, ND | Exposure Factor Datasets | 66.6-75.4 95% CI | Laboratory |
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 |
---|---|---|---|---|---|---|---|---|
Population Density | 9.08 (76) | mean density of breeding birds (maximum density in parentheses) | pairs/square mile | Both Male and Female | Adult | 130 sample units (160 acres/unit) | Exposure Factor Datasets |
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 |
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 |
---|---|---|---|---|---|---|---|---|
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 |
Burrowing Owl (Athene cunicularia formerly Speotyto cunicularia)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 2.5 | young/occupied nest | Both Male and Female | Adult | Not Reported | Columbia River | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Body Weight - Mean | 172.0 | g | Male | Not Reported | 12 birds | Oakland Airport | Exposure Factor Datasets |
Body Weight - Mean | 168.0 | g | Female | Not Reported | 10 birds | Oakland Airport | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Hatching Success | 73 | percent of pairs hatching at least one chick | % | Both Male and Female | Adult | 15 pairs | Moffett Air Force Base | Exposure Factor Datasets | Santa Clara |
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 |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Population Density | 5.8 | mean density in prairie dog towns of <35 ha | owls/ha | Not Reported | Adult | 71 nests | west. NE | Exposure Factor Datasets | 3.6 SE |
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 |
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 |
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 | 26.58 | daily food intake on a mouse diet, dry weight basis | g/kg/d | Not Reported | Adult | 4 owls x 5 days = 20 owl days | Exposure Factor Datasets | 4.08 | Laboratory | |
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 |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Growth Rate | 0.1900 | growth constant based on logistic growth equation | Female | Nestling | 1 owl | Delaware County | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Population Density | 1 | bird/2000 acres | Both Male and Female | Not Reported | 11 owls | Superior township | Exposure Factor Datasets | |
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 |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Population Density | density based on call counts | birds/2000 ac | Both Male and Female | Both Adults and Juveniles | 7 counts | San Joaquin Experimental Range | Exposure Factor Datasets | Madera | |
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 | Endpoint Value | Endpoint Description | 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 |
Northern Flicker (Colaptes auratus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Foraging Distance | range of distances between night roost location and the following day's locations | km | Not Reported | Adult | 4 birds, 20-99 radio fixes per bird | Lakewood, Jefferson County | Exposure Factor Datasets | |
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 |
---|---|---|---|---|---|---|---|
Time of Migration or Dispersal | review | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets | CANADA, USA | |
Dietary Composition | review | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets | CANADA, USA |
Willow Flycatcher (Empidonax traillii)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Time of Nesting | May-August | inclusive of pairing through departure from nesting territory | Both Male and Female | Adult | 15 birds | Sierra National Forest | Exposure Factor Datasets | Fresno | |
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 |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|---|
Hatching Success | 24/31 | total number of eggs hatched relative to estimate of total eggs laid | eggs hatched/eggs laid | Not Reported | Nestling | 11 nests | Perazzo Meadows, Lacey Valley (32 km NW of Truckee) | Exposure Factor Datasets | Sierra | |
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 | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|---|
Metabolic Rate | 0.241 | predicted night time basal metabolic rate | W | Not Reported | Adult | Not Reported | collection location George E. Hudson Biological Reserve, Whitman County | Exposure Factor Datasets | Laboratory |
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 |
Bushtit (Psaltriparus minumus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | range of individual body weights | g | Not Reported | Hatchling | 2 birds | Stanford University Campus | Exposure Factor Datasets | Santa Clara | |
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 |
---|---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 4.7 | average number of fledglings produced per successful nest, 2 years | fledglings/nest | Not Reported | Fledgling | 32 nests | York County | Exposure Factor Datasets | 1.3 SD |
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 |
---|---|---|---|---|---|---|---|---|---|
Time of Mating/ Laying | Apr-mid Aug | period from clutch initiations to chicks fledging | Both Male and Female | Adult | 98 pairs | Ada, Elmoor, Owyhee Counties | Exposure Factor Datasets | ||
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 |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 3.02 | average number of fledglings produced per nesting attempt | fledglings/nest | Not Reported | Fledgling | 60 nesting attempts | southern Minnesota | Exposure Factor Datasets | 2.07 SD |
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 |
---|---|---|---|---|---|---|---|---|
Dietary Composition | Orthoptera (59); Lepidoptera (15); Coleoptera (10); arthropod larvae (8); mammals; reptiles and amphibians (4); unident. arthropods (3) | percent of total identified prey items delivered to the nest | % | Not Reported | Nestling | 1 pair, 155 identified prey | York County | 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 |
Bell's Vireo (Vireo bellii)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Longevity | 6 -11 | age of oldest identified banded individual | yr-mo | Not Reported | Adult | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|
Territory Size | review | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets | MEXICO, USA | |
Age at Fledging, Metamorphosis, Weaning | review | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets | MEXICO, USA |
Exposure Endpoint Type | 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 |
Song Sparrow (Melospiza melodia)
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|
Time of Mating/ Laying | early Feb.-July | Both Male and Female | Adult | Not Reported | California to Washington | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Countries | Error |
---|---|---|---|---|---|---|---|---|---|---|---|
Survival/ Mortality | 0.98 | young raised to independence | young/pair | Not Reported | Chick | 34 nests | Mandarte Island | Exposure Factor Datasets | CANADA | 0.17 | |
Body Weight - Mean | 16.69 | with supplemental food at d 6 | g | Not Reported | Chick | 31 | 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 | 3.31 | suppl. food | eggs/clutch | Both Male and Female | Adult | 16 pairs with suppl. food | Mandarte island | Exposure Factor Datasets | CANADA | 0.11 SE |
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 |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|---|---|
Hatching Success | 29.4% | proportion of successful nests containing unhatched eggs | % | Both Male and Female | Both Adults and Juveniles | 32 nests | southwestern Ontario | Exposure Factor Datasets | CANADA | |
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 | 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 |
Western Meadowlark (Sturnella neglecta)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Time of Fledging or Metamorphosis | observed number of days chicks spent in nest | d | Not Reported | Fledgling | Not Reported | Exposure Factor Datasets | ||
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 | 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 |
Gilded flicker (Colaptes auratus ssp. chrysoides)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 4.20 | average size of clutches existing in North American oological collections | eggs/clutch | Female | Adult | 57 clutches | Exposure Factor Datasets | Laboratory |
Southwestern Willow Flycatcher (Empidonax traillii ssp. extimus)
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|
Time of Migration or Dispersal | review | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets | |
Time of Nesting | review | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets |
Least Bell's Vireo (Vireo bellii ssp. pusillus)
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Hatching Success | range in proportions of total eggs hatching vs. total eggs laid (for two years) | eggs hatched/eggs produced | Not Reported | Hatchling | 238-262 eggs (two yrs) | Gibraltar Reservoir | Exposure Factor Datasets | Santa Barbara |
Fledging or Weaning Rate | range in proportions of total chicks fledging vs. total chicks hatched (for two years) | chicks fledged/chicks hatched | Not Reported | Fledgling | 147 eggs hatched (2 yrs) | Gibraltar Reservoir | Exposure Factor Datasets | Santa Barbara |
Suisun Song Sparrow (Melospiza melodia ssp. maxillaris)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
---|---|---|---|---|---|---|---|---|---|---|
Population Density | 15.6-27.4 (brackish marsh), 9.1-20.5 (altered brackish marsh) | breeding population densities | pairs/ha | Both Male and Female | Adult | 11 sample areas | Suisun Bay; San Francisco Bay; San Pablo Bay | Exposure Factor Datasets | Contra Costa | breeding |
Peregrine Falcon (Falco peregrinus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
---|---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 1.80 | average number of fledged or nearly fledged young per occupied cliff | fledglings/nest | Both Male and Female | Adult | 12 pairs | Yukon River | Exposure Factor Datasets | breeding |
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 Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | range over 2 yrs | young/pair | Both Male and Female | Fledgling | 7 - 9 pairs | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Survival/ Mortality | 16 | average maximum loss rate; estimated by number of individuals returning to nest in 2 successive yrs | % | Both Male and Female | Adult | 23 - 34 cases | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | review | Both Male and Female | Fledgling | Not Reported | Exposure Factor Datasets | USA | |
Population Density | review | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets | USA |
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 |
Northwestern willow flycatcher (Empidonax traillii ssp. brewsteri)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Time of Migration or Dispersal | May 15 | date of earliest arrival of spring migrants | Both Male and Female | Not Reported | Not Reported | Exposure Factor Datasets |
Alameda Song Sparrow (Melospiza melodia ssp. pusillula)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
---|---|---|---|---|---|---|---|---|---|---|
Population Density | 20.5-41.0 (salt marsh), 9.9-20.5 (alterned salt marsh), 5.9-11 (fringe vegetation) | breeding population densities | pairs/ha | Both Male and Female | Adult | 27 sample areas | Suisun Bay; San Francisco Bay; San Pablo Bay | Exposure Factor Datasets | Contra Costa | breeding |