Plate I. 



Tongues of North American Woodpeckers (all viewed from above and enlarged 

 2J diameters) . 



Fig. 1. Hybrid Flicker (Colaptes). Fort Pierre, S. Dak. 



2. Delattre's Woodpecker {Ceophlwus soapiilaris). Tabasco, Mexico. 



3. Glided Flicker (CoZopies chrysoides). San Jose del Cabo, Lower California. 



4. Downy Woodpecker {Dryobates pubescens) . Washington, D. C. 



5. White-headed Woodpecker (XenqpicMS a?6o!a)'Da<»s). Clarks Fork, Colum- 



bia River, Washington. 



6. Hairy Woodpecker (Dryobaies villosus). 



7. Gila Woodpecker (Melanerpea nropygialis) . Fort Huachuca, Ariz. 



8. Three-toed Woodpecker {Picoides aroiicus). Illinois. 



9. Red-headed Woodpecker {Melanerpes erythrooephalus). Northern Illinois. 



10. California Woodpecker (Melanerpes formicivorous hairdi). Stockton, Cal. 



11. Ladder-back Woodpecker (Dryobates scalaris). Matamoras, Mexico. 



12. Red-naped Sapsueker (Spliyrapicu8 varius mushalis). Fort Wingate, N. Mex. 



40 



