Arctic Herring Gull vs Aleutian Tern
Larus smithsonianus в сравнении с Onychoprion aleuticus
Side-by-Side Comparison
| Характеристика | Arctic Herring Gull | Aleutian Tern |
|---|---|---|
| Научное название | Larus smithsonianus | Onychoprion aleuticus |
| Отряд | Charadriiformes | Charadriiformes |
| Семейство | Laridae | Laridae |
| Охранный статус | Least Concern | Vulnerable |
| Длина | — | — |
| Размах крыльев | 85,9 cm (33.8 in) | 52,4 cm (20.6 in) |
| Масса | 1108,0 g (39.08 oz) | 104,88 g (3.70 oz) |
| Питание | -- | -- |
| Размер кладки | 2-3 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Общие среды обитания
Arctic Herring Gull only
Aleutian Tern only
Нет
Охранный статус
Least Concern
Arctic Herring Gull
Vulnerable
Aleutian Tern
About These Birds
Arctic Herring Gull
Arctic Herring Gull, 55–66 cm, breeds across Arctic North America and winters on all coasts of the US. Formerly lumped with European Herring Gull; darker-eyed on average, slightly more northerly range. Omnivore and scavenger; abundant at fishing ports, dumps, and beaches in winter.
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.