Monitoring the Impacts of Brown-Headed Cowbird Parasitism on Neotropical Migrants in Eight Western National Park Units: Study Protocol
Halterman MD, Laymon SA, Sogge M, Allen S. 1998. Monitoring the Impacts of Brown-Headed Cowbird Parasitism on Neotropical Migrants in Eight Western National Park Units: Study Protocol
"This handbook offers an in-depth description of the methods for monitoring populations of neotropical migratory birds; monitoring populations of Brown-headed Cowbirds; searching for and monitoring nests of potential cowbird hosts; and BHCO trapping...This pilot neotropical migrant and cowbird monitoring and control program was conducted for two successive breeding seasons (1995 and 1996) in eight western regional National Parks. These are Golden Gate NRA; Great Basin NP; Lake Mead NRA; Montezuma Castle NM; Organ Pipe Cactus NM; Point Reyes NS; Sequoia-Kings Canyon NP; and Yosemite NP."