%0 Journal Article %T Field Metabolic Rate and Food Consumption of Two Sympatric Hummingbird Species in Southeastern Arizona %A Powers, Donald, R. %A Conley, Timothy, M. %J Condor: Ornithological Applications %V 96 %N 1 %P 141-150 %@ 0010-5422 %D 1994-02-01 %I Oxford Academic %~ DeepDyve