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| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| Fledging or Weaning Rate | 9/16 | fraction of nests that sucessfully raised at least one nestling to the age of 4 weeks | successful nests/total nests | Both Male and Female | Adult | Pima and Pinal Counties | 16 nests | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 3.0 | average clutch size | 0.56 | 2-4 | eggs/clutch | Female | Adult | Hanford Site, Benton and Franklin Counties | 12 nests | Exposure Factor Datasets |
| Hatching Success | 2.67 | average number of young hatched | 1.09 | hatches/nest | Not Reported | Nestling | Hanford Site, Benton and Franklin Counties | 12 nests | Exposure Factor Datasets | |
| Fledging or Weaning Rate | 2.67 | average number of young fledged | 1.09 | fledglings/nest | Not Reported | Fledgling | Hanford Site, Benton and Franklin Counties | 12 nests | Exposure Factor Datasets | |
| Population Density | range of numbers of nesting pairs counted annually on a 1476 sq km study site | 3-5 | pairs/study site | Both Male and Female | Adult | Hanford Site, Benton and Franklin Counties | 4 years | Exposure Factor Datasets | ||
| Population Density | range of numbers of individual owls counted annually on a 1476 sq km study site | 11-19 | individuals/study site | Both Male and Female | Adult | Hanford Site, Benton and Franklin Counties | 4 years | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|
| Fledging or Weaning Rate | 4.0 | average number of young fledged | 0.41 | fledges/nest | Not Reported | Fledgling | Hanford Site, Benton and Franklin Counties | 4 nests | Exposure Factor Datasets |
| Population Density | 10 | number of nesting pairs counted annually on study site | pairs/1476 sq km | Both Male and Female | Adult | Hanford Site, Benton and Franklin Counties | 4 years | Exposure Factor Datasets | |
| Population Density | 20 | number of individual kestrels counted annually on study site | individuals/1476 sq km | Both Male and Female | Adult | Hanford Site, Benton and Franklin Counties | 4 years | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|
| Home Range | range of home range size based on telemetry location data | 48-101 | ha | Not Reported | Adult | Lakewood, Jefferson County | 4 birds, 20-99 radio fixes per bird | Exposure Factor Datasets | |
| Foraging Distance | range of distances between night roost location and the following day's locations | 0-1.4 | km | Not Reported | Adult | Lakewood, Jefferson County | 4 birds, 20-99 radio fixes per bird | Exposure Factor Datasets | |
| Body Weight - Mean | 140 | average body weight at time of capture | 131-144 | g | Not Reported | Adult | Lakewood, Jefferson County | 4 birds | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 8 | first clutch size | eggs/clutch | Female | Adult | Asheville, Buncombe County | 1 nest | Exposure Factor Datasets |
| Duration of Incubation or Gestation | 11 | incubation period | d | Not Reported | Embryo | Asheville, Buncombe County | 1 nest | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Range | Units | Sex | Life Cycle Stage | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 6.5 | average size of clutches existing in North American museum collections | 1.4 SD | 3-12 | eggs/clutch | Female | Adult | 411 clutches | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 6.18 | average size of clutches laid early in the breeding season | eggs/clutch | Female | Adult | New Concord, Muskingum County (40 deg, 00'N, 81 deg, 46'W) | 17 clutches | Exposure Factor Datasets |
| Clutch or Litter Size | 4.71 | average size of clutches laid late in the breeding season (1990-92,1994) | eggs/clutch | Female | Adult | New Concord, Muskingum County (40 deg, 00'N, 81 deg, 46'W) | 7 clutches | Exposure Factor Datasets |
| Hatching Success | 5.27 | average number of nestlings from clutches laid early in the breeding season (1990-1992, 1994) | nestlings/clutch | Not Reported | Nestling | New Concord, Muskingum County (40 deg, 00'N, 81 deg, 46'W) | 11 clutches | Exposure Factor Datasets |
| Hatching Success | 3.25 | average number of nestlings from clutches laid late in the breeding season (1990-1992, 1994) | nestlings/clutch | Not Reported | Nestling | New Concord, Muskingum County (40 deg, 00'N, 81 deg, 46'W) | 4 clutches | Exposure Factor Datasets |
| 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 | New Concord, Muskingum County (40 deg, 00'N, 81 deg, 46'W) | 11 clutches | 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 | New Concord, Muskingum County (40 deg, 00'N, 81 deg, 46'W) | 4 clutches | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | range of mean clutch sizes measured among auratus ssp., cafer ssp., and auratus/cafer hybrid flickers | 6.97-7.75 | eggs/clutch | Female | Adult | Lincoln, Morrill, Scottsbluff Counties, NE; Platte County, WY | 10-32 clutches per subspecies or hybrid group | Exposure Factor Datasets |
| Hatching Success | range of mean brood to clutch size ratios measured among male and female auratus ssp., cafer ssp., and auratus/cafer hybrid flickers | 0.826-0.903 | Both Male and Female | Adult | Lincoln, Morrill, Scottsbluff Counties, NE; Platte County, WY | 4-42 clutches per subspecies or hybrid group | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Type |
|---|---|---|---|---|---|---|---|
| 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 |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|
| Population Density | 71.2 | density estimate on a grazed plot by transect counts using an exponential polynomial model | 49.6-92.8 95% CI | birds/40 ha | Not Reported | Not Reported | San Joaquin Experimental Range | 64 birds | Exposure Factor Datasets |
| Population Density | 72.8 | density estimate on an ungrazed plot by point count using an exponential polynomial model | 50.1-95.5 95% CI | birds/40 ha | Not Reported | Not Reported | San Joaquin Experimental Range | 43 birds | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|---|
| Territory Size | 0.4 | average territory size based on > 400 point observations | 0.08 | 0.28-0.52 | ha | Not Reported | Adult | Jasper Ridge Biological Experimental Area, nr Portola Valley | 12 territories | Exposure Factor Datasets |
| Body Weight - Mean | 5.37 | mean body weight of museum specimens | g | Not Reported | Not Reported | 23 birds | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| Population Density | 2.2 | breeding density estimate | birds/36 ha | Male | Adult | Palomarin Field Station, Point Reyes Bird Observatory | 6 territories | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|
| Foraging Distance | See figure | figure showing mapping of approximate ranges of two flocks during one season | Both Male and Female | Not Reported | University of California campus | 2 flocks | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | 3.96 | approximate basal rate of nocturnal oxygen consumption, measured at 30 deg C | cc O^2/g/h | Not Reported | Adult | captured at Occidental College, Los Angeles | 12 birds | Exposure Factor Datasets | |
| Metabolic Rate | metabolic rate = 0.36(ambient T) + 14.64 | linear regression equation for relationship between nocturnal metabolism and ambient temperature | Not Reported | Adult | captured at Occidental College, Los Angeles | 12 birds | Exposure Factor Datasets | ||
| Body Weight - Mean | 5.5 | mean body weight | 0.2 SE | g | Not Reported | Adult | captured at Occidental College, Los Angeles | 6 birds | Exposure Factor Datasets |
| Food Ingestion Rate | 35.17 | consumption of mealworms at 20 deg C | 1.26 SE | kJ/d | Not Reported | Adult | captured at Occidental College, Los Angeles | 6 birds | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|
| Growth Rate | 0.092 | change in snout-vent length measured between recaptures (>1000d) | 0.0071 | mm/d | Female | Adult | Calaveras Big Trees State Park (elev., 1400m) | Not Reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|
| Population Density | 0.1-1.0 | birds/acre | Not Reported | Not Reported | Los Banos, Merced | 23-67 birds counted | Exposure Factor Datasets | ||
| Time of Nesting | Mar-Aug | length of nesting period | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets | |||
| Clutches or Litters per year | 2 | usual number of nesting attempts per year | nests/yr | Female | Adult | Not Reported | Exposure Factor Datasets | ||
| Clutch or Litter Size | 5 | usual number of eggs laid | eggs/clutch | Female | Adult | Not Reported | Exposure Factor Datasets | ||
| Hatching Success | 3 | estimated average brood size | young/clutch | Not Reported | Juvenile | Not Reported | Exposure Factor Datasets |
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