Arizona Field Ornithologist
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Calliope Hummingbird (Stellula calliope ), Yuma, Yuma County

Considered a rare and irregular spring migrant in the lower Colorado River Valley, most records of Calliope Hummingbirds for this region of Arizona are noted between mid-April and early May (Rosenberg et al. 1991). There are very few records in the fall along the lower Colorado River when the bulk of migrants passing through the state take advantage of the abundant flowers in the mountains and higher river valleys of northern and eastern Arizona.




24 April 2006 photo by Henry Detwiler


©2005
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