| Exposure Endpoint Type | Endpoint Description | Endpoint Value | Sample Size | Units | Life Cycle Stage | Specific Location | California Counties | Type |
|---|---|---|---|---|---|---|---|---|
| Hatching Success | proportion of observed nests with at least one successful hatch | 85.2% | 209 | Adult | Tule Lake and Lower Klamath River National Wildlife Refuges | Modoc, Siskiyou | Exposure Factor Datasets | |
| Time of Nesting | period between first observed nest to last observed hatches | April-September | 209 | Adult | Tule Lake and Lower Klamath River National Wildlife Refuges | Modoc, Siskiyou | Exposure Factor Datasets | |
| Clutch or Litter Size | mean clutch size of successful nests | 8.9 | 178 | eggs | Adult | Tule Lake and Lower Klamath River National Wildlife Refuges | Modoc, Siskiyou | Exposure Factor Datasets |
| Hatching Success | Mean hatch success of successful nests | 91.4% | 178 | Adult | Tule Lake and Lower Klamath River National Wildlife Refuges | Modoc, Siskiyou | Exposure Factor Datasets | |
| Time of Hatching or Parturition | May-July | Not Reported | Adult | Tule Lake and Lower Klamath River National Wildlife Refuges | Modoc, Siskiyou | Exposure Factor Datasets |
