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Swainson's Hawks in California. The Swainson's hawk (Buteo Swainsoni) was listed as a threatened species in 1983 by the California Fish and Game Commission. This listing was based on loss of habitat and decreased numbers across the state.
The Swainson’s Hawk breeds in the western United States, and Canada (California Department of Fish and Game 1993). Its winter range occurs in isolated areas of California, Mexico and Central America, through South America and as far south as Argentina (Bechard et al. 2010, Kochert et al. 2011).
Swainson's Hawk Survey Protocols, Impact Avoidance, and Minimization Measures for Renewable Energy Projects in the Antelope Valley of Los Angeles and Kern Counties, California (PDF) (California Energy Commission and Department of Fish and Wildlife, 6/2010)
STATUS. California Threatened and Federal Species of Concern. LIFE HISTORY. Swainson's hawk is diurnal and similar in size to the more common red-tailed hawk (Buteo jamaicensis). There are two distinct color phases (morphs) of Swainson's hawks--light and dark-- with variations in between.
Swainson’s Hawk Status Report. The Swainson’s hawk (Buteo swainsoni) is a state-listed threatened species in California and is a Covered Species under the Natomas Basin Habitat Conservation Plan and the Metro Airpark Habitat Conservation Plan.
Title. Five-year status review: Swainson's hawk (Buteo swainsoni) Author. Schlorff, R. W. Subject. Nongame Bird and Mammal Section 88-27. Keywords. threatened species, raptor.
The Swainson’s Hawk is listed as threatened under California Endangered Species Act and is a federal species of conservation concern (USFWS 2008). Swainson’s Hawk 1: Jim Morris. Swainson’s Hawk 2: Sharon Barker.
