Alan Murphy / Yellow-bellied Sapsucker (Sphyrapicus varius) male, Texas

Floris van Breugel / Ferns, mosses and blooming azaleas in marshes, Sapsucker Woods, Ithaca, New York, USA. May. Veolia Environnement Wildlife Photographer of the Year 2009 - Highly Commended in the 'In Praise of Plants'...

Marie Read / Yellow-bellied Sapsucker (Sphyrapicus varius), male drumming, long exposure, New York, USA, April.

Marie Read / Red-breasted sapsucker (Sphyrapicus ruber) adult feeding on tree sap from shallow wells it has drilled in bark of Curl-leaf Mountain-mahogany (Cercocarpus ledifoius), Lee Vining Canyon, California, US...

Jeff Foott / Yellow-bellied sapsucker (Sphyrapicus varius) feeding on willow, Teton National Park, Wyoming, USA. August

Jeff Foott / Yellow-bellied sapsucker (Sphyrapicus varius) juvenile feeding on willow, this species damages the trunk to feed on sap. Teton National Park, Wyoming, USA. August

Jeff Foott / Yellow warbler (Dendroica petechia) at Yellow-Bellied Sapsucker site (Sphyrapicus varius) damage in tree to eat sap. Sapsuckers damages trees trunks to feed on sap. Teton National Park, Wyoming, USA....

Jeff Foott / Broad-tailed Hummingbird (Selasphorus platycerus) at Yellow-Bellied sapsucker (Sphyrapicus varius) damage in tree. Sapsuckers damages trees trunks to feed on sap. Teton National Park, Wyoming, USA. Au...

Alan Murphy/ BIA / Red-naped Sapsucker (Sphyrapicus nuchalis)woodpecker male foraging for insects, British Columbia, Canada

Alan Murphy/ BIA / Red-naped Sapsucker (Sphyrapicus nuchalis)woodpecker male, British Columbia, Canada

Nick Saunders/ BIA / Yellow-bellied Sapsucker (Sphyrapicus varius) male, Saskatchewan, Canada

Alan Murphy/ BIA / Red-breasted Sapsucker (Sphyrapicus ruber), British Columbia, Canada