EXPLANATION TO PLATE III. 



Figs. 1. 2, :i. Cliordeiles \nrgiiiianu.s, Gmelin. Nighthawk. 



Fig. 4. Cliordeiles virginianus henryi, Cassin. Western Nighthawk. 



Figs. .">, 0. Cliordeiles virginianus cliapmani, Sennett. Florida Nighthawk 



Figs. 7. ,s, 9^ 10. Chordeiles acutipeimis tesensis, La-wTence. Texan Nighthawk. 



Figs. 11. 12. l:l. Pica pica hud.sonica. Sabine. American Magpie. 



Fig. 14. Pica nnttalli, Andnbon. Yellow-billed Magpie. 



Figs. l.j. Hi, IT. Xanthonra Inxuosa, Lesson. Green Jay. 



Figs. IS, 1!). Perisoreus canadensis. Linna?us. Canada Jay. 



Fig. 211. Perisoreus canadensis nigricajiillus, Ridgway. Labrador Jay. 



Fig. 21. Perisoreus ob.scnrus, Ridgway. Oregon Jay. 



Figs. 22. 2:!. Nucifraga colnmbiana, Wilson. Clarke's Nutcracker. 



Figs. 24, 25. Cyanocephalus cyanocephalus, Wied. Piuon Jay. 



