During the Presidio’s annual census, birders counted 4,141 birds representing 109 different species. It is believed that about 200 bird species use the Presidio, ranging from year-round residents like Anna’s Hummingbirds and Great Egrets to migratory species like Red-throated Loons. Among the highlights of this year’s count were six Red Crossbills. The Wrentit, which almost became extinct in San Francisco, was spotted near Lobos Creek, raising hopes that the species is finding refuge in the natural areas of the Presidio. For a complete count, visit the Audubon website.