Black-throated Blue Warbler bird looking for insects in a Yellow-bellied Sapsucker feeding hole in a birch tree, Parker River National Wildlife Refuge, Plum Island, Newbury, Massachusetts, USA.
Black-throated Blue Warbler bird looking for insects in a Yellow-bellied Sapsucker feeding hole in a birch tree, Parker River National Wildlife Refuge, Plum Island, Newbury, Massachusetts, USA.
Keywords: Black-throated Blue Warbler, Setophaga caerulescens, Parker River National Wildlife Refuge, Plum Island, Newbury, Massachusetts, MA, USA. small bird, birding, wildlife, nature, outdoors, warbler, photography, bird, birch tree, yellow-bellied sapsucker holes, hunting, hunting insects
