"The Presidio for many years was one of the major U.S. Army posts on the West Coast. In 1995 almost all of it was turned over to the National Park Service, to be administered as a part of Golden Gate National Recreation Area. NOTE: As is always the case in big city parks, you should be careful in the more isolated areas, where it is generally not a good idea to bird alone. Specialty birds: Resident—Hutton’s Vireo, Chestnut-backed Chickadee, Pygmy Nuthatch. Summer—Heermann’s Gull, Elegant Tern, Allen’s Hummingbird, Hooded Oriole. Winter—Western Grebe, Black Turnstone, Surfbird, Mew Gull, Red-breasted Sapsucker, Varied Thrush, Townsend’s Warbler. This eTrail provides detailed information on birding strategies for this specific location, the specialty birds and other key birds you might see, directions to each birding spot, a detailed map, and helpful general information."