J. Bielefeldt et Rn. Rosenfield, Comment: Comparative breeding ecology of Cooper's hawks in urban vs. exurban areas of southeastern Arizona, J WILDL MAN, 64(2), 2000, pp. 599-600
Because of methodological, analytical, and inferential shortcomings, Boal a
nd Mannan (1999) did not provide a valid. demonstration that urban nesting
Cooper's hawks (Accipiter cooperii) in Tucson, Arizona exhibit lower reprod
uctive success than exurban pairs, or that urban Tucson acts as an ecologic
al trap for breeding Cooper's hawks.