Ring-billed Gull vs Saunders's Gull
Larus delawarensis مقارنةً بـ Saundersilarus saundersi
Side-by-Side Comparison
| السمة | Ring-billed Gull | Saunders's Gull |
|---|---|---|
| الاسم العلمي | Larus delawarensis | Saundersilarus saundersi |
| الرتبة | Charadriiformes | Charadriiformes |
| الفصيلة | Laridae | Laridae |
| حالة الحفاظ | Least Concern | Vulnerable |
| الطول | — | — |
| طول الجناح | 73,2 cm (28.8 in) | 54,8 cm (21.6 in) |
| الوزن | 500,0 g (17.64 oz) | 195,0 g (6.88 oz) |
| النظام الغذائي | -- | -- |
| عدد البيض في الوضع | 3 | 1-6 |
| Population Trend | — | — |
Habitat Comparison
حالة الحفاظ
Least Concern
Ring-billed Gull
Vulnerable
Saunders's Gull
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.
Saunders's Gull
Saunders's Gull, 29–32 cm, is a Vulnerable gull breeding in coastal saltmarshes of China and Korea, wintering along East Asian coasts to Vietnam. Black hood in breeding plumage, white wing-tip mirrors. Feeds on crustaceans and invertebrates in tidal mudflats. Threatened by reclamation of Yellow Sea tidal flats.