Distribution / Range
The Wilson's Storm-petrels are found on the Antarctic coastlines and nearby islands such as the South Shetland Islands. They are more common in the north Atlantic than the Pacific.
The Wilson's Storm-petrel measures about 16 - 18.5 cm in length and has a wingspan of 38 - 42 cm.
The plumage is mostly dark brown, except for a white rump.
It resembles the slightly smaller European Storm-petrel, but can be identified by the pale bar on the upper wing, plain underwings and longer legs.