Inca Tern vs Heermann's Gull
Larosterna inca so với Larus heermanni
Side-by-Side Comparison
| Thuộc Tính | Inca Tern | Heermann's Gull |
|---|---|---|
| Tên Khoa Học | Larosterna inca | Larus heermanni |
| Bộ | Charadriiformes | Charadriiformes |
| Họ | Laridae | Laridae |
| Tình Trạng Bảo Tồn | Near Threatened | Near Threatened |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 55,4 cm (21.8 in) | 67,2 cm (26.5 in) |
| Khối Lượng | 199,5 g (7.04 oz) | 448,26666666666665 g (15.81 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Tình Trạng Bảo Tồn
Near Threatened
Inca Tern
Near Threatened
Heermann's Gull
About These Birds
Inca Tern
Inca Tern, 39–42 cm, is unmistakable — dark slate grey with white facial plumes curling from the bill like a Victorian moustache. Restricted to the Humboldt Current from Peru to Chile. Piscivore; snatches anchovies and other prey at the surface. Near Threatened; population tied to anchovy availability.
Heermann's Gull
Heermann's Gull, 46–51 cm, is distinctive — dark grey body, white head (breeding), red bill. Breeds almost entirely on Isla Rasa in the Gulf of California, then disperses north along the Pacific coast to British Columbia. Kleptoparasite; steals fish from Brown Pelicans. Near Threatened; range highly restricted.