Long-tailed Jaeger vs Arctic Jaeger
Stercorarius longicaudus 对比 Stercorarius parasiticus
Side-by-Side Comparison
| 属性 | Long-tailed Jaeger | Arctic Jaeger |
|---|---|---|
| 学名 | Stercorarius longicaudus | Stercorarius parasiticus |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Stercorariidae | Stercorariidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 60.3 cm (23.7 in) | 62.1 cm (24.4 in) |
| 体重 | 315.75 g (11.14 oz) | 459.0 g (16.19 oz) |
| 食性 | -- | -- |
| 产卵数 | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
Long-tailed Jaeger
Least Concern
Arctic Jaeger
About These Birds
Long-tailed Jaeger
Long-tailed Jaeger, 48–53 cm body plus up to 25 cm tail streamers, is the most elegant jaeger, breeding on Arctic and sub-Arctic tundra worldwide. Feeds primarily on lemmings on the breeding grounds; transitions to pelagic planktivore and piscivore on the ocean. Migrates to subantarctic waters — one of the longest migrations.
Arctic Jaeger
短尾贼鸥（约500克）是一种行动敏捷的海鸟，尾羽中央延长，以追逐其他海鸟直到放弃猎物的盗食行为著名。繁殖于北极苔原，在开阔大洋中越冬。以旅鼠（夏季）和偷抢的食物（冬季）为食。无危；在整个分布范围内较为常见。