Saunders's Gull vs Damara Tern
Saundersilarus saundersi 比較対象 Sternula balaenarum
Side-by-Side Comparison
| 属性 | Saunders's Gull | Damara Tern |
|---|---|---|
| 学名 | Saundersilarus saundersi | Sternula balaenarum |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保全状況 | Vulnerable | Least Concern |
| 体長 | — | — |
| 翼開長 | 54.8 cm (21.6 in) | 33.9 cm (13.3 in) |
| 体重 | 195.0 g (6.88 oz) | 50.675 g (1.79 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 1-6 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
保全状況
Vulnerable
Saunders's Gull
Least Concern
Damara 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.
Damara Tern
Damara Tern, 22–24 cm, is a Vulnerable tern endemic to the Namibian and South African coast. White below, grey above, with a black cap and yellow bill. Breeds sparsely on Namibian beaches; winters north to Gulf of Guinea. Highly sensitive to coastal development and off-road vehicles.