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| Exposure Endpoint Type | Endpoint Value | Range | Units | Sex | Life Cycle Stage | Sample Size | Type |
|---|---|---|---|---|---|---|---|
| Fledging or Weaning Rate | 2.46 | 1-4 | fledglings/brood | Both Male and Female | Fledgling | 48 broods | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| Fledging or Weaning Rate | 2.6 | fledlings/pair | Both Male and Female | Fledgling | Not Reported | Exposure Factor Datasets | ||
| Survival/ Mortality | brood survival; increase to 60% in 1991, due to protective measures | 40-60 | % | Not Reported | Fledgling | Not Reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| Fledging or Weaning Rate | range over 2 yrs | 2.45 - 2.94 | young/successful nest | Both Male and Female | Adult | Wager Bay, Northwest Territories | 11 - 18 nests | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | 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 | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 3.70 | average clutch size | 1-5 | eggs/clutch | Female | Adult | 77 clutches | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| Population Density | range of mean distances (SE) between adjacent nests | 5.6 (2.4) - 8.0 (6.9) | km | Both Male and Female | Adult | Grand Canyon National Park | 3 sites, 9-26 nests per site | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|
| Survival/ Mortality | range of annual mortality rates over 3 years, corrected for known movements | 29-33 | % | Female | Adult | Colville, Sagavanirktok, Yukon, and Tanana Rivers | 7-11 recaptured birds/yr | Exposure Factor Datasets | |
| Age at Sexual Maturity | 2.8 (female); 2.6 (male) | mean age when first captured as a breeding adult | yr | Both Male and Female | Adult | Colville, Sagavanirktok, Yukon, and Tanana Rivers | 20 females; 5 males | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| Survival/ Mortality | mortality rate in Germany and Finland of ringed birds | 19-28 | % | Not Reported | Both Adults and Juveniles | 209 birds | Exposure Factor Datasets | |
| Survival/ Mortality | mortality rate of ringed young birds | 56-71 | % | Not Reported | Juvenile | 134 birds | Exposure Factor Datasets | |
| Longevity | 15 | years | Not Reported | Adult | 1 bird | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|---|
| Population Density | 1 pair per 17sq. km | pairs | Both Male and Female | Adult | Rankin Inlet, Hudson Bay (62 deg49'N, 92 deg05'W) | 6 survey years; 17-26 territories per year | Exposure Factor Datasets | |||
| Fledging or Weaning Rate | 1.91 | representative number of fledglings per nest attempt in a "normal year" | 0.54-2.35 | fledglings/nest | Both Male and Female | Fledgling | Rankin Inlet, Hudson Bay (62 deg49'N, 92 deg05'W) | 101 pairs | Exposure Factor Datasets | |
| Clutch or Litter Size | 3.62 | mean number of eggs laid per nest attempt | 0.59 SD | eggs/clutch | Female | Adult | Rankin Inlet, Hudson Bay (62 deg49'N, 92 deg05'W) | 84 nest attempts | Exposure Factor Datasets | |
| Hatching Success | 87% | ratio of total eggs hatched to total eggs produced | % | Both Male and Female | Hatchling | Rankin Inlet, Hudson Bay (62 deg49'N, 92 deg05'W) | 101 pairs | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | 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 | Sex | Life Cycle Stage | Sample Size | Type |
|---|---|---|---|---|---|
| Clutch or Litter Size | review | Female | Adult | Not Reported | Exposure Factor Datasets |
| Dietary Composition | review | Not Reported | Adult | Not Reported | Exposure Factor Datasets |
| Duration of Incubation or Gestation | review | Not Reported | Adult | Not Reported | Exposure Factor Datasets |
| Fledging or Weaning Rate | review | Both Male and Female | Fledgling | Not Reported | Exposure Factor Datasets |
| Population Density | review | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets |
| Time of Mating/ Laying | review | Not Reported | Adult | Not Reported | Exposure Factor Datasets |
| Age at Sexual Maturity | review | Not Reported | Adult | Not Reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| Territory Size | 130 | 15-291 | m2 | Male | Adult | San Nicolas Island, CA | 24-25 males | Exposure Factor Datasets |
| Time of Hatching or Parturition | May/June | Not Reported | Pup | San Nicolas Island | 127 pups | Exposure Factor Datasets | ||
| Time of Mating/ Laying | June/July | Both Male and Female | Adult | San Nicolas Island, CA | not reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 2 | description | Both Male and Female | Adult | location | sample size | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 4.22 | mean clutch size of nests in control plots | 0.94 | eggs/clutch | Female | Adult | southwestern Ontario | 32 nests | Exposure Factor Datasets |
| Hatching Success | 29.4% | proportion of successful nests containing unhatched eggs | % | Both Male and Female | Both Adults and Juveniles | southwestern Ontario | 32 nests | Exposure Factor Datasets | |
| Fledging or Weaning Rate | 3.88 | mean number of young fledged per successful nest | 1.22 | fledglings/nest | Both Male and Female | Fledgling | southwestern Ontario | 32 nests | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|
| Territory Size | 1745 | mean territory size, measured by song playbacks and observations of border disputes | 406 SD | m^2 | Male | Adult | Reifel Island, Delta, British Columbia | 6 birds | Exposure Factor Datasets |
| Territory Size | 3956 | mean territory size, measured by song playbacks and observations of border disputes | 611 SD | m^2 | Male | Adult | Reifel Island, Delta, British Columbia | 6 birds | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Type |
|---|---|---|---|---|---|---|---|
| Food Ingestion Rate | 412 (foxtail); or 468 (smartweed); or 85 (hemp); or 3943 (pigweed) | estimated number of seeds per hour required at 0 degrees C for active individuals | seeds/hour | Not Reported | Adult | Not Reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|
| Time of Nesting | first two weeks of May | peak time of nest initiation | Both Male and Female | Adult | near Delta, Manitoba | 46 nests | Exposure Factor Datasets | ||
| 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) | 0.14 SE | eggs/clutch | Female | Adult | near Delta, Manitoba | 41 nests | Exposure Factor Datasets |
| Hatching Success | 19/31 | proportion of successful nests (hatched at least one egg) in which entire clutch hatched | Both Male and Female | Adult | near Delta, Manitoba | 41 nests | Exposure Factor Datasets | ||
| Fledging or Weaning Rate | 2.32 | number of young fledged per female | 0.06 SE | young/female | Female | Adult | near Delta, Manitoba | 38 females | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Terrestrial: Reptiles (1.8%); Rodents (21.0%); Lagomorphs (6.6%); Birds (6.3%); Arthropods (5.7%); Vegetation (8.1%) Marine: Reptiles (0.6%); Mammals (0.3%); Fish (12.0%); Birds (16.5%); Arthropods (17.7%); Vegetation (0.6%) | average percent occurrence of item in scats from 4 coastal sites | % | Not Reported | Not Reported | Bahia de los Angeles, Baja California del Norte [lat., 28^o55' N; long., 113^o30' W] | 152 | Exposure Factor Datasets |
| Dietary Composition | Terrestrial: Reptiles (7.1%); Rodents (48.0%); Lagomorphs (15.9%); Birds (1.0%); Arthropods (11.8%); Vegetation (15.5%) Marine: Birds (0.3%) | average percent occurrence of item in scats from 4 inland sites | % | Not Reported | Not Reported | Bahia de los Angeles, Baja California del Norte [lat., 28^o55' N; long., 113^o30' W] | 170 | Exposure Factor Datasets |
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