Monday, August 4, 2014

Anna’s Hummingbird

On 25 February 2014, Erika and I arrived at Terlingua at the edge of Big Bend National Park.  We hoped for rare hummingbirds at local feeders. The only hummers we saw were two Anna’s Hummingbirds. I thought that they might be Black-chinned Hummingbirds. Mary Gustafson, an eBird checker and friend, assures me that the primaries are wide,  not narrow, even on the inner feathers, and the green flanks all point to Anna’s Hummingbird.

The Anna’s Hummingbird’s range has greatly expanded since the 1930s. Then it was only found from Baja California to San Francisco. Now it breeds north to British Columbia and east to western Texas. Apparently this species has taken advantage of the proliferation of hummingbird feeders and exotic plants (Clark and Russell 2012).

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