Richard S. Crossin 

 1719N. Huachuca 

 Tucson, Arizona 85705 



Dirk Lanning and Peter Lawson 

 Chihuahuan Desert Research Institute 

 Box 1334 

 Alpine, Texas 79830 



LITERATURE CITED/SELECTED 

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Ridgley, R. Unpubl. interim report for 1976. 

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Stager, K. E. 1954. Birds of Barranca de Cobre 

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