Leach's Storm-Petrel -- Oregon Shore Birds

Location in Oregon
Blue is Winter range - Red is Summer range
Purple is Year-round range - Yellow is Migration range

Leach's Storm-Petrel

Oceanodroma leucorhoa -- Fairly common well off Pacific coast. Distinctive erratic flight, with deep strokes of long, pointed wings. In close view, note dusky line dividing white rump band on most birds.