Gull-sized but with narrower wings and a smaller, rounded head. The bill is long, slender, and strongly hooked, with tubelike nostrils set on top of the bill. Tail is fairly short.
Larger than a Bonaparte's Gull, smaller than a Herring Gull.crow-sized
- Both Sexes
- Length: 15.8-20.1 in (40-51 cm)
- Weight: 22.9-34.5 oz (650-978 g)
- Wingspan: 37.0-42.9 in (94-109 cm)