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| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 3.8 | mean clutch size | 0.9 SD | eggs/clutch | Female | Adult | Archbold Biological Station, Highlands County | 24 clutches | Exposure Factor Datasets | |
| Hatching Success | 33.8 | percent of eggs that produced hatchlings by the day after the first hatch | 47.6 SD | % | Not Reported | Hatchling | Archbold Biological Station, Highlands County | 24 clutches | Exposure Factor Datasets | |
| Body Weight - Mean | 33.0 | mean body weight of 10 day old nestlings | 2.6 SD | 28.5-37.1 | g | Not Reported | Nestling | Archbold Biological Station, Highlands County | 18 nestlings | Exposure Factor Datasets |
| Clutches or Litters per year | number of clutches laid per season per pair | 1-2 | clutches/pair | Both Male and Female | Adult | Archbold Biological Station, Highlands County | 10 pairs | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|---|
| Territory Size | 8.35 | mean territory size in pasture habitat | 0.66 SD | 5.3-9.6 | ha | Both Male and Female | Adult | Archbold Biological Station near Lake Placid | 6 territories | Exposure Factor Datasets |
| Dietary Composition | Odonata (12.1), Hemiptera (23.0), Coleoptera (22.3), Lepidoptera (7.3), Orthoptera (16.8), Hyla cinerea (7.6), H. squirella (1.7), Gastrophyne carolensis (0.9), Rana spenocephala (0.4), Anolis carolinensis (2.8), Scincella lateralis (4.1), Eumeces inexpectatus (1.0) | percent of total prey items caught by observed pairs | % | Both Male and Female | Adult | Archbold Biological Station near Lake Placid | 6 territories | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | 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 | York County | 1 pair, 155 identified prey | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Mollusca (0.00), Crustacea (0.27), Arachnida (0.14), Insecta (14.77), Reptilia (53.29), Mammalia (27.66), Aves (3.86) | percent of total prey found in pellets by biomass | % | Not Reported | Not Reported | San Clemente Island | 1238 pellets | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|---|
| Population Density | range in density of pairs, 4 years | 1/4.3 to 1/11.6 | pairs/km | Both Male and Female | Adult | San Clemente Island | 5-13 pairs/year | Exposure Factor Datasets | ||
| Fledging or Weaning Rate | 2.33 | mean number of fledglings produced per successful nest | 0.34 SD | fledglings/nest | Not Reported | Fledgling | San Clemente Island | 29 nests | Exposure Factor Datasets | |
| Survival/ Mortality | 45 | percent of fledglings that died before reaching independence from parents | % | Not Reported | Fledgling | San Clemente Island | 29 nests | Exposure Factor Datasets | ||
| Territory Size | 34 | mean pair foraging area during breeding season, 4 years | 12 SD | ha | Both Male and Female | Adult | San Clemente Island | 12 territories | Exposure Factor Datasets | |
| Longevity | 3 | adult life expectancy based on duration of home range occupancy | yr | Female | Adult | San Clemente Island | Not Reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | April, May | months of peak nest initiation activity, 2 years | Both Male and Female | Adult | coast | 2-15 nests/colony/year | Exposure Factor Datasets | |
| Hatching Success | 13 | proportion of nests with at least one egg hatching | % | Not Reported | Hatchling | coast | 72 nests | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 1.73 | mean clutch size | 1-3 | eggs/clutch | Female | Adult | Cape Romain National Wildlife Refuge | 396 clutches | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|
| Survival/ Mortality | 17/32 to 33/33 | range of numbers of clutches lost of total numbers of clutches in a colony | Not Reported | Chick, Embryo | coast | 7 colonies, 8 years | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|---|
| Fledging or Weaning Rate | average number of fledglings produced per pair, over 13 years | 0.4-1.7 | fledglings/pair | Not Reported | Fledgling | Venice (beach) | 35-165 pairs/year | Exposure Factor Datasets | ||
| Fledging or Weaning Rate | average number of fledglings produced per pair, over 13 years | 0.45-0.94 | fledglings/pair | Not Reported | Fledgling | statewide | 775-1,264 pairs/year | Exposure Factor Datasets | ||
| Age at Sexual Maturity | 2 | earliest age at which adults were known to breed for the first time | yr | Not Reported | Adult | Venice (beach) | 186 birds | Exposure Factor Datasets | ||
| Longevity | 13 | age of oldest banded breeding birds | yr | Not Reported | Adult | Venice (beach) | 40-105 birds/year | Exposure Factor Datasets | ||
| Survival/ Mortality | 0.88 | overall survival rate for adults that have returned to breed once | Not Reported | Adult | Venice (beach) | 82-165 breeding pairs/year | Exposure Factor Datasets | |||
| Survival/ Mortality | 0.16 | rate at which chicks survived to breed at least once | Not Reported | Chick | Venice (beach) | 84-285 chicks/year | Exposure Factor Datasets | |||
| Longevity | 9.63 | expected number of breeding years per adult bird | 6.55-14.48 95% CI | yr | Not Reported | Adult | Venice (beach) | 372 birds | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Type |
|---|---|---|---|---|---|---|
| Dietary Composition | Hemiptera (34.43%), Orthoptera (18.52%), Lepidoptera (20.63%), Coleoptera (15.26%), Hymenoptera (6.44%), other insects and spiders (2.71%), vegetable food (0.7%) | percent occurrence of food items in stomachs | Not Reported | Not Reported | 52 stomachs | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|
| Population Density | 8-10 | 8.2-10.5 | pairs/acre | Both Male and Female | Adult | San Pablo Marsh; San Francisco Bay | Not Reported | Exposure Factor Datasets | |
| Clutch or Litter Size | 3.14 | 2.91-3.42 | eggs/nest | Both Male and Female | Adult | San Pablo Marsh; San Francisco Bay | Not Reported | Exposure Factor Datasets | |
| Population Density | 87-124 | pairs/100 acres | Both Male and Female | Adult | San Pablo Marsh; San Francisco Bay | Not Reported | Exposure Factor Datasets | ||
| Clutch or Litter Size | 8.2 | 7.5-9.1 | eggs/pair/year | Both Male and Female | Adult | San Pablo Marsh; San Francisco Bay | Not Reported | Exposure Factor Datasets | |
| Longevity | up to 7 | years | Both Male and Female | Adult | San Pablo Marsh; San Francisco Bay | 6 animals (from 1000) | Exposure Factor Datasets | ||
| Survival/ Mortality | 80-85 | 1 year or younger | % | Both Male and Female | Adult | San Pablo Marsh; San Francisco Bay | Not Reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | oological collections | 3.05-4.17 | eggs/nest | Both Male and Female | Adult | from Baja California to Alaska | 545 records | Exposure Factor Datasets | |
| Time of Mating/ Laying | early Feb.-July | Both Male and Female | Adult | California to Washington | Not Reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|
| Hatching Success | 45.9-82.3 | % | Both Male and Female | Adult | Mandarte Island | 4733 eggs | Exposure Factor Datasets | ||
| Time of Mating/ Laying | 24 Feb-19 April | Both Male and Female | Adult | Mandarte island | Not Reported | Exposure Factor Datasets | |||
| Body Weight - Mean | 3.12 | median egg weight | g | Both Male and Female | Adult | Mandarte island | 387 eggs | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Type |
|---|---|---|---|---|---|---|
| Clutch or Litter Size | 3.28 | eggs/nest | Both Male and Female | Adult | 90 records | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|
| Water Ingestion Rate | review | Not Reported | Not Reported | Suisun Bay | Not Reported | Exposure Factor Datasets |
| Home Range | review | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets | |
| Time of Mating/ Laying | review | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets |
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