Least storm-petrel
Oceanodroma microsoma
Identification Tips:
- Sexes similar
- Pelagic bird only coming ashore to breed
- Small-sized storm-petrel
- Dark bill with tube on top
- Dark plumage
- Dark rump
- Wedge-shaped tail
- Deep, rapid wingbeats
Similar species:
Most likely to be confused with other storm petrels. Ashy is larger with
shallower wingbeats. Black is much larger with slower wingbeats and a forked
tail. Other species have white rumps.