Blue Noddy vs Aleutian Tern
Anous ceruleus 对比 Onychoprion aleuticus
Side-by-Side Comparison
| 属性 | Blue Noddy | Aleutian Tern |
|---|---|---|
| 学名 | Anous ceruleus | Onychoprion aleuticus |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Least Concern | Vulnerable |
| 体长 | — | — |
| 翼展 | 35.2 cm (13.9 in) | 52.4 cm (20.6 in) |
| 体重 | 51.85 g (1.83 oz) | 104.88 g (3.70 oz) |
| 食性 | -- | -- |
| 产卵数 | 1 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
Blue Noddy
Vulnerable
Aleutian Tern
About These Birds
Blue Noddy
Blue Noddy is a tiny seabird, 25–28 cm, restricted to tropical Pacific atolls including Hawaii and Tuamotu. Pale blue-grey above, whitish below, with a distinctive pale cap. Piscivore; flutters low over lagoons picking prey from the surface. Near Threatened.
Aleutian Tern
Aleutian Tern, 32–34 cm, breeds colonially in Alaska and Russian Far East, wintering in Southeast Asian waters — one of the most poorly tracked migrations among seabirds. Dark grey above, white below, black cap with white forehead. Piscivore; dives for small fish. Near Threatened.