Arctic Herring Gull vs Aleutian Tern
Larus smithsonianus مقارنةً بـ Onychoprion aleuticus
Side-by-Side Comparison
| السمة | Arctic Herring Gull | Aleutian Tern |
|---|---|---|
| الاسم العلمي | Larus smithsonianus | Onychoprion aleuticus |
| الرتبة | Charadriiformes | Charadriiformes |
| الفصيلة | Laridae | Laridae |
| حالة الحفاظ | Least Concern | Vulnerable |
| الطول | — | — |
| طول الجناح | 85,9 cm (33.8 in) | 52,4 cm (20.6 in) |
| الوزن | 1108,0 g (39.08 oz) | 104,88 g (3.70 oz) |
| النظام الغذائي | -- | -- |
| عدد البيض في الوضع | 2-3 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
الموائل المشتركة
Arctic Herring Gull only
Aleutian Tern only
بلا
حالة الحفاظ
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.