Ashy Storm-petrel vs Guadalupe Storm-petrel
Hydrobates homochroa compared with Hydrobates macrodactylus
Side-by-Side Comparison
| Attribute | Ashy Storm-petrel | Guadalupe Storm-petrel |
|---|---|---|
| Scientific Name | Hydrobates homochroa | Hydrobates macrodactylus |
| Order | Procellariiformes | Procellariiformes |
| Family | Hydrobatidae | Hydrobatidae |
| Conservation Status | Endangered | Not Evaluated |
| Length | — | — |
| Wingspan | 26.6 cm (10.5 in) | 32.7 cm (12.9 in) |
| Weight | 36.333333333333336 g (1.28 oz) | 36.71 g (1.29 oz) |
| Diet | -- | -- |
| Clutch Size | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Endangered
Ashy Storm-petrel
Not Evaluated
Guadalupe 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.
Guadalupe Storm-petrel
Guadalupe Storm-petrel, 22–23 cm, is Critically Endangered — possibly extinct; no confirmed sightings since the 1930s when cats eliminated the colony on Guadalupe Island. Large, all-dark storm-petrel very similar to Black Storm-petrel. Status uncertain; intensive searches have not relocated any individuals.