Monthly Archives: May 2013

A Presumptive Rufous-capped Warbler X Common Yellowthroat Hybrid at Chalk Bluff Park, Texas.

Rufous-capped Warbler (Basileuterus rufifrons) is a widespread warbler species ranging from the southern fringe of the US to the northernmost bits of South America. Within that extensive range, populations form distinct subspecies groups. Northern birds (such as the ones that … Continue reading

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