Nesting Tricolored Blackbird Survey: Baja California 2008

This report summarizes a field survey of 26 known and potential tricolored blackbird colony locations conducted by Richard A. Erickson, LSA Associates and Horacio de la Cueva, Biologia de la Conservacion in northern Baja California, Mexico from March to June, 2008. Tricolors were observed at 7 locations and breeding was confirmed at 4 of the sites surveyed. Extreme drought conditions were observed in 2007 persisted in this region in 2008 and are believed responsible for depressing prey abundance and resulting in poor reproductive performance in most terrestrial bird species, including the tricolor.