Glenn Bartley/ BIA / Yellow-bellied Sapsucker (Sphyrapicus varius) male, Ontario, Canada

Jeff Foott / Yellow-bellied Sapsucker (Sphyrapicus varius) juvenile, Grand Teton National Park, Wyoming

Jeff Foott / Yellow-bellied Sapsucker (Sphyrapicus varius) foraging site with sap seeping, Grand Teton National Park, Wyoming

Jeff Foott / Bald-faced Hornet (Dolichovespula maculata) feeding on sap at Yellow-bellied Sapsucker (Sphyrapicus varius) foraging site, Grand Teton National Park, Wyoming

Jeff Foott / Broad-tailed Hummingbird (Selasphorus platycercus) feeding on sap at Yellow-bellied Sapsucker (Sphyrapicus varius) foraging site, Grand Teton National Park, Wyoming

Tom Vezo / Yellow-bellied Sapsucker (Sphyrapicus varius) bathing, Rio Grande Valley, Texas

Tom Vezo / Yellow-bellied Sapsucker (Sphyrapicus varius) bathing, Rio Grande Valley, Texas

Marie Read / Male Yellow-bellied sapsucker (Sphyrapicus varius) clinging to resonant trunk of dead tree in preparation for drumming. Freeville, New York, USA. May. Topaz AI DeNoise applied.

Marie Read / Yellow-bellied sapsucker (Sphyrapicus varius) male drumming on tree trunk, Freeville, New York, USA. Spring.

Glenn Bartley/ BIA / Yellow-bellied Sapsucker (Sphyrapicus varius) female, Ontario, Canada

Marie Read / Male Yellow-bellied sapsucker (Sphyrapicus varius) drumming on a tree trunk in spring, New York, USA, May.