female yellow-bellied sapsucker sits perched on tree at opening to nesting cavity

female yellow-bellied sapsucker sits perched tree opening nesting cavity american animal animal markings themes bark beak bellied bird bird watching birds black branch close environment eye fall feather feathers forest insectavor isolated male migrate migration migratory natural nature outdoors photograph red sapsucker spring summer tree white wild wildlife wings woodland woodpecker woodpeckers yellow yellow-bellied nesting nest