Saunders's Gull vs Snowy-crowned Tern
Saundersilarus saundersi 비교 대상 Sterna trudeaui
Side-by-Side Comparison
| 속성 | Saunders's Gull | Snowy-crowned Tern |
|---|---|---|
| 학명 | Saundersilarus saundersi | Sterna trudeaui |
| 목 | Charadriiformes | Charadriiformes |
| 과 | Laridae | Laridae |
| 보전 상태 | Vulnerable | Least Concern |
| 체장 | — | — |
| 날개 폭 | 54.8 cm (21.6 in) | 51.2 cm (20.2 in) |
| 체중 | 195.0 g (6.88 oz) | 149.75 g (5.28 oz) |
| 식성 | -- | -- |
| 산란 수 | 1-6 | 2-4 |
| Population Trend | — | — |
Habitat Comparison
보전 상태
Vulnerable
Saunders's Gull
Least Concern
Snowy-crowned Tern
About These Birds
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.
Snowy-crowned Tern
Snowy-crowned Tern, 33–35 cm, breeds along the Atlantic coasts of Argentina and Uruguay, wintering north to southern Brazil. White crown with black post-ocular mark (unlike a full black cap), yellow-tipped red bill. Coastal and estuarine piscivore; plunge-dives for small fish.