Ringed Storm-petrel vs Least Storm-petrel
Hydrobates hornbyi compared with Hydrobates microsoma
Side-by-Side Comparison
| Attribute | Ringed Storm-petrel | Least Storm-petrel |
|---|---|---|
| Scientific Name | Hydrobates hornbyi | Hydrobates microsoma |
| Order | Procellariiformes | Procellariiformes |
| Family | Hydrobatidae | Hydrobatidae |
| Conservation Status | Near Threatened | Least Concern |
| Length | — | — |
| Wingspan | 32.6 cm (12.8 in) | 23.8 cm (9.4 in) |
| Weight | 39.25 g (1.38 oz) | 18.0 g (0.63 oz) |
| Diet | -- | -- |
| Clutch Size | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Near Threatened
Ringed Storm-petrel
Least Concern
Least Storm-petrel
About These Birds
Ringed Storm-petrel
Ringed Storm-petrel, 21–23 cm, is an extremely poorly known species with a highly restricted range over the Humboldt Current off Peru and Chile. White underparts with a distinctive dark breast band — giving the 'ringed' appearance. Breeding grounds unknown until recently; likely nests in Atacama Desert.
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.