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Larus philadelphia (Ord, 1815) Bonaparte's gull |
| No Picture Available |
| Family: | Laridae () | |||
| Max. size: | 36 cm TL (male/unsexed); max.weight: 212.0 g | |||
| Environment: | others; freshwater; marine | |||
| Distribution: | Western Central Atlantic and Northeast Pacific: | |||
| Diagnosis: | Culmen: 2.99 cm; tarsus: 3.175 cm; wing: 26.3 cm. | |||
| Biology: | Total Length: 18 to 21 cm; Wingspan: 30 to 33 cm (Ref. 8812). Estuarine. Found on bay and nearshore (Ref. 116102). Surface seizing; dipping; coastal (Ref. 356). A surface nester, usually builds nest in trees. One of the few species that nest and forage in inland habitats, and move to the coast during non-breeding season. Colonial; distance between pairs may be >100m but nest sites still clumped with many other suitable nesting areas unutilized. Vulnerable to oil spill as a piscivore; saw 50% decline in population from 1989 in Prince William Sound after the Exxon Valdez oil spill (Ref. 87784). | |||
| IUCN Red List Status: | (LC); Date assessed: 08 August 2018 Ref. 123251) | |||
| Threat to humans: | ||||
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