Platk II. 



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

 and enlarged 9^^ diameters). 



Fig. 1. California Woodpecker (J/e?<iMe>-/)e8/o;-»iicu-oroM« iairdi). Stockton, Cal. 



2. Red-lieadcd Woodpecker {Melanerpes eriithrocephahis). Northern Illinois. 



3. Ladder-back Woodpecker (Dri/ohaies scalaris). Matamoras, Mexico. 



4. Downy Woodpecker {DryohaUs puhcocens). Washington, D. C. 



5. Three-toed Woodpecker {VicoidcH arctkua). Illinois. 



6. Gila Woodpecker (Melanerpes uropi/gialia). Fort Huachuca, Ariz. 



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

 del Cabo, Lower California. 



7. Hairy Woodpecker {Dryohatex riUoaus). 



8. Whit«-headed Woodpecker (AVho/jicms albolarvatim). Clarks Fork, Colum- 



bia Kiver, Washington. 



9. Pileated Woodpecker (Ceophlama pilealua). Louisiana. 



10. Gilded Flicker ( Colaptes rhrysoidcx). San Jose del Cabo, Lower California. 



11. Delattre's Woodpecker {Ceophlceus scapularia). Tabaaco, Mexico. 



42 



