PLaTE I, 
Tongues of North American Woodpeckers (all viewed from above and enlarged 
24 diameters). 
Fig. 1. 
2. 
Hybrid Flicker (Colaptes). Fort Pierre, S. Dak. 
Delattre’s Woodpecker (Ceophlwus scapularis). Tabasco, Mexico. 
. Gilded Flicker (Colaptes chrysoides). San Jose del Cabo, Lower California. 
. Downy Woodpecker (Dryobates pubescens). Washington, D. C. 
. White-headed Woodpecker (Yenopicus albolarvatus), Clarks Fork, Colum- 
bia River, Washington. 
» Hairy Woodpecker (Dryobates villosus). 
» Gila Woodpecker (Velanerpes uropygialis), Fort Huachuca, Ariz. 
. Three-toed Woodpecker (Picoides arcticus). Ilinois. 
. Red-headed Woodpecker (Melanerpes erythrocephalus). Northern Illinois. 
. California Woodpecker (Mclanerpes formicivorous bairdi). Stockton, Cal. 
. Ladder-back Woodpecker (Dryobates scalaris). Matamoras, Mexico. 
. Red-naped Sapsucker (Sphyrapicus varius nuchalis). Fort Wingate, N. Mex. 
40 
