Authors: Ortega, CP Ortega, JC

Citation: Cp. Ortega et Jc. Ortega, Effects of brown-headed cowbirds on the nesting success of chipping sparrows in southwest Colorado, CONDOR, 103(1), 2001, pp. 127-133

Authors: Ortega, JC Ortega, CP

Citation: Jc. Ortega et Cp. Ortega, Effects of Brown-headed Cowbirds and predators on the nesting success of Yellow Warblers in southwest Colorado, J FIELD ORN, 71(3), 2000, pp. 516-524