Ashy Storm-petrel vs Least Storm-petrel
Hydrobates homochroa compared with Hydrobates microsoma
Side-by-Side Comparison
| Attribute | Ashy Storm-petrel | Least Storm-petrel |
|---|---|---|
| Scientific Name | Hydrobates homochroa | Hydrobates microsoma |
| Order | Procellariiformes | Procellariiformes |
| Family | Hydrobatidae | Hydrobatidae |
| Conservation Status | Endangered | Least Concern |
| Length | — | — |
| Wingspan | 26.6 cm (10.5 in) | 23.8 cm (9.4 in) |
| Weight | 36.333333333333336 g (1.28 oz) | 18.0 g (0.63 oz) |
| Diet | -- | -- |
| Clutch Size | 1 | 1 |
| Population Trend | — | — |
Conservation Status
Endangered
Ashy Storm-petrel
Least Concern
Least 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.
Least Storm-petrel
World's smallest seabird at 13–15 cm. Sooty-black with white rump; short rounded wings. Breeds Baja California islands; ranges offshore in eastern Pacific to Ecuador. Feeds on zooplankton and small fish by pattering on the surface. Nocturnal at breeding colonies; Near Threatened.