Ashy Storm-petrel vs Swinhoe's Storm-petrel
Hydrobates homochroa so với Hydrobates monorhis
Side-by-Side Comparison
| Thuộc Tính | Ashy Storm-petrel | Swinhoe's Storm-petrel |
|---|---|---|
| Tên Khoa Học | Hydrobates homochroa | Hydrobates monorhis |
| Bộ | Procellariiformes | Procellariiformes |
| Họ | Hydrobatidae | Hydrobatidae |
| Tình Trạng Bảo Tồn | Endangered | Near Threatened |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 26,6 cm (10.5 in) | 30,5 cm (12.0 in) |
| Khối Lượng | 36,333333333333336 g (1.28 oz) | 39,55 g (1.40 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 1 | 1 |
| Population Trend | — | — |
Tình Trạng Bảo Tồn
Endangered
Ashy Storm-petrel
Near Threatened
Swinhoe's Storm-petrel
About These Birds
Ashy Storm-petrel
Ashy Storm-petrel, 19–21 cm, is restricted to the California Current of the eastern Pacific; breeding on Channel Islands and the Farallon Islands. Entirely ashy brown without white rump — uncommon among storm-petrels. Endangered; less than 10,000 individuals; threatened by light pollution and introduced predators.
Swinhoe's Storm-petrel
Swinhoe's Storm-petrel, 19–20 cm, breeds on small islands off Korea and in the western North Pacific, wintering in the Indian Ocean. Entirely dark sooty brown with a forked tail and white rump largely hidden. Long-distance migrant crossing two oceans. Planktivore; poorly studied due to nocturnal, crevice-nesting habits.