Thursday, December 13, 2012

Yellow-crowned Night-Heron

Yellow-crowned Night-Herons are easily identified as adults, but see my last post on telling the immatures apart. Typically Yellow-crowns are birds of the south, inhabiting forested wetlands, swamps and bayous. There they specialize in taking crustaceans. Since 1945, Yellow-crowned Night-Herons have moved northward and now can occasionally be found here in the Upper Midwest. Curiously in the mid-1800s they could be found here too, but the species’ range contracted dramatically in the late 1800s (Watts 2011). The causes of these population fluctuations are unknown. This photograph is from the Ding Darling National Wildlife Refuge in Florida.

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