Parasitic jaegers are strong, fast fliers with a flash of white on the bases of the underwing primaries. This is the most frequently seen jaeger from shore and it sometimes enters estuaries.

They are an uncommon fall and rare spring transient offshore. Their flight is low and unlabored with falcon-like wing-beats that alternate with shearwater-like glides. These birds chase terns and small gulls for up to several minutes until they disgorge food.

Hear the call of the Parasitic jaeger

Photo by Aaron Maizlish, Flickr