Altitude and temperature effects on the energetic cost of hover-feeding in migratory rufous hummingbirds, Selasphorus rufus

Author: Suarez Raul K.   Welch   Kenneth C.  

Publisher: NRC Research Press

ISSN: 1480-3283

Source: Canadian Journal of Zoology, Vol.86, Iss.3, 2008-03, pp. : 161-169

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Abstract