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Williamson's sapsucker        Images © Mark A. Chappell

Williamson's sapsuckers are strikingly-colored woodpeckers with strong sexual dimorphism.   Males are colorful; females are brownish and barred and are so different that they were initially considered as another species.   These were photographed near a nest in an aspen tree in Yellowstone Park, Wyoming.  The parents very quickly got used to our presence and energetically fed their noisy chicks, almost exclusively on ants (a seemingly unpleasant diet for a young bird).

  • Canon 1D4; 800 mm IS lens with 1.4X converter, fill-in flash (2013, 2014)