Ring-billed Gull vs Aleutian Tern
Larus delawarensis مقارنةً بـ Onychoprion aleuticus
Side-by-Side Comparison
| السمة | Ring-billed Gull | Aleutian Tern |
|---|---|---|
| الاسم العلمي | Larus delawarensis | Onychoprion aleuticus |
| الرتبة | Charadriiformes | Charadriiformes |
| الفصيلة | Laridae | Laridae |
| حالة الحفاظ | Least Concern | Vulnerable |
| الطول | — | — |
| طول الجناح | 73,2 cm (28.8 in) | 52,4 cm (20.6 in) |
| الوزن | 500,0 g (17.64 oz) | 104,88 g (3.70 oz) |
| النظام الغذائي | -- | -- |
| عدد البيض في الوضع | 3 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
حالة الحفاظ
Least Concern
Ring-billed Gull
Vulnerable
Aleutian Tern
About These Birds
Ring-billed Gull
Ring-billed Gull, 43–54 cm, is North America's most abundant gull, breeding on lakes from the Great Plains to the Great Lakes and wintering on all coasts. Adult has a distinctive black ring near bill tip, yellow legs. Omnivore; thrives on garbage, parking lots, and agricultural fields.
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.