Heerman’s Gull (Larus heermani) Laridae

Yaquina Head Outstanding Natural Area (BLM), OR
June 12, 2015
Robert Niese

Heerman’s Gulls

are often mistaken for jaegers due to their dark, pointed wings and their habit of chasing other birds (particularly pelicans) to steal their prey. They are the only gull species in North America to breed south of the States, but spend winters north of Mexico. Recently, perhaps due to a surge in southern populations thanks to Mexico’s increased protection for the species, a few individuals have attempted to nest in the US on Alcatraz Island.

Wilson’s Warbler (Wilsonia pusilla) Parulidae, male

Yaquina Head Outstanding Natural Area (BLM), OR
June 12, 2015
Robert Niese

Wilson’s Warbler was first identified by the father of American Ornithology, Alexander Wilson, in 1811. In his honor, the species was placed in a new genus, Wilsonia, in 1838 along with the Canada Warbler (W. canadensis) and the Hooded Warbler (W. citrina). But recent genetic evidence suggests that the genus Wilsonia should be split and merged with Setophaga and Cardellina. Although, considering that the methods used to determine these new relations are six years old, another revision of the Parulid family tree would not be surprising. Wilson’s Warblers are a common resident of moist forests throughout the PNW and perhaps best identified, like all warblers, by their song.