Platb II. 



Tips of tongues of North American Woodpeckers (all save 4 viewed from above 

 and enlarged 9i diameters). 

 Fig. 1. CalifoTBia, WooCipeokeT {^Melanerpes formioivorous hairdi). Stockton, Cal. 



2. Eed-headed Woodpecker {Melanerpes erythrocephalus). Northern Illinois. 



3. Ladder-back Woodpecker {Dryoiates scalaris). Matamoras, Mexico. 



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



5. Three-toed Woodpecker (Picoides aroticus). Illinois. 



6. Gila Woodpecker {Melanerpes nropygialis). Fort Hiiachuca, Ariz. 



6a. Another specimen showing variation due to wear of tongue. San Jose 

 del Cabo, Lower California. 



7. Hairy Woodpecker {Dryoiates villosua). 



8. White-headed Woodpecker (Xenopicits albolarvatus). Clarks Fork, Colum- 



bia Eiver, Washington. 



9. Pileated Woodpecker (Ceo^AZfBjts^sJeatMs). Louisiana. 



10. frilded Flicker ( Colaptes chrysoidea). San Jose del Cabo, Lower California. 



11. Delattre's Woodpecker (CeopAteus scopwZaris). Tabasco, Mexico. 



42 



