Lesser Noddy vs Heermann's Gull
Anous tenuirostris so với Larus heermanni
Side-by-Side Comparison
| Thuộc Tính | Lesser Noddy | Heermann's Gull |
|---|---|---|
| Tên Khoa Học | Anous tenuirostris | Larus heermanni |
| Bộ | Charadriiformes | Charadriiformes |
| Họ | Laridae | Laridae |
| Tình Trạng Bảo Tồn | Least Concern | Near Threatened |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 42,4 cm (16.7 in) | 67,2 cm (26.5 in) |
| Khối Lượng | 106,35 g (3.75 oz) | 448,26666666666665 g (15.81 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 1 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Tình Trạng Bảo Tồn
Least Concern
Lesser Noddy
Near Threatened
Heermann's Gull
About These Birds
Lesser Noddy
Lesser Noddy: 30–34 cm, smaller and darker than Brown Noddy with a whiter cap sharply demarcated from the dark body and a slender bill. Breeds colonially in mangroves and low bushes on islands of the tropical Indian Ocean and western Pacific. Feeds on small fish and invertebrates by dipping to sea surface. Wingspan 58–63 cm. Partly migratory.
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.