Ashy Storm-petrel vs Matsudaira's Storm-petrel
Hydrobates homochroa compared with Hydrobates matsudairae
Side-by-Side Comparison
| Attribute | Ashy Storm-petrel | Matsudaira's Storm-petrel |
|---|---|---|
| Scientific Name | Hydrobates homochroa | Hydrobates matsudairae |
| Order | Procellariiformes | Procellariiformes |
| Family | Hydrobatidae | Hydrobatidae |
| Conservation Status | Endangered | Vulnerable |
| Length | — | — |
| Wingspan | 26.6 cm (10.5 in) | 37.0 cm (14.6 in) |
| Weight | 36.333333333333336 g (1.28 oz) | 62.0 g (2.19 oz) |
| Diet | -- | -- |
| Clutch Size | 1 | -- |
| Population Trend | — | — |
Conservation Status
Endangered
Ashy Storm-petrel
Vulnerable
Matsudaira'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.
Matsudaira's Storm-petrel
Matsudaira's Storm-petrel, 24–26 cm, is a large, all-dark storm-petrel breeding on Volcano and Ryukyu Islands of Japan. Long-winged, slow flapping flight. Winters off East Africa and the Arabian Sea — an Indian Ocean migrant from North Pacific colonies. Planktivore and surface feeder.