In Oregon, fork-tailed storm-petrels breed in numbers that are only a tiny fraction of those of Leach's storm petrels. This is the larger of the two storm-petrels breeding in Oregon and is gray in color.

These birds leave and return to breeding colonies only at night, when they are best detected by their distinct raspy call. At sea, they are distinguished by quick, buoyant flight with short glides interspersed with wing fluttering to maintain their position at a food source.

Fewer than 20 nests have been found in Oregon, all located in the same habitat as colonies of Leach's storm petrels. At sea they are present all year.

Fork-tailed storm-petrels are an Oregon Conservation Strategy Species in the Nearshore ecoregion. 

Hear the call of the fork-tailed storm petrel. 

Photo by Ian Jones, Flickr