Race anthonyi may be genetically distinct#R. Races intergrade, making subspecific delimitation difficult. Other proposed races include gambeli (Calaveras County, in EC California), nevadensis (Inyo County, in E California) and sonoriensis (Chiracahua Mts, in SE Arizona), all subsumed into excubitorides, and miamensis (Miami-Dade County, in SE Florida) merged with nominate; and, in Mexico, nelsoni (S Baja California) synonymized with mexicanus. Seven subspecies currently recognized.
Food and feeding
Status and conservation
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