| Family: |
Laridae () |
| Max. size: |
53 cm TL (male/unsexed); max.weight: 640.0 g |
| Environment: |
others; marine |
| Distribution: |
Eastern Pacific and Western Atlantic. |
| Diagnosis: |
Culmen: 4.37 cm; wing: 34.7 cm. |
| Biology: |
Total Length: 46 to 53 cm; Wingspan: 117 to 124 cm (Ref. 8812). Coastal; <50km (Ref. 356). Use various behavioral methods to thermoregulate such as neck extension, panting and gaping, elevation of feathers and/or scapulars, feather fluffing, beak tucking under scapular, wing drooping, tail tilting, etc. Egg neglect, while parents forage, was observed; eggs left at night run the risk of chilling causing the embryo's heart to stop beating (Ref. 87784). Displays surface-plunging and dipping (Ref. 356). |
| IUCN Red List Status: |
Near Threatened (NT); Date assessed: 28 August 2020 (D2) Ref. 123251)
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| Threat to humans: |
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| Country info: |
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