% LIST OF ILLUSTRATIONS xxiii 
Figure Page 
116. English Sparrow. 682 
117. Cassin Purple Finch, head. 688 
118. Gray-crowned Rosy Finch, head. 696 
119. Pine Siskin. . . 700 
120. Arctic Towhee, skin. 712 
121. Spurred Towhee, skin. 712 
122. Savannah Sparrow, skin. 721 
123. Baird Sparrow, skin. 724 
124. Vesper Sparrow, tail... 725 
125. Black-throated Sparrow, head. 733 
126. Sage Sparrow, head. 734 
127. Western Tree Sparrow. 744 
128. Western Chipping Sparrow, head. 745 
129. Brewer Sparrow, head. 748 
130. Worthen Sparrow, head. 749 
131. Harris Sparrow. . *. 751 
132. White-crowned Sparrow. 752 
133. Gambel Sparrow, head.... 755 
134. Song Sparrow. 757 
135. McCown Longspur, skin. 760 
136. Chestnut-collared Longspur, foot. 762 
MAPS 
Life Zone Map (Plate 2).Facing page 6 
Map 
1. Routes and collecting localities of Biological Survey parties. 14 
2 . Treganza Blue Heron. 88 
3. Dusky Grouse. 198 
4. Southern White-tailed Ptarmigan. 204 
5. Arizona Scaled Quail. 216 
6 . Gambel Quail. 220 
7. Mearns Quail. 225 
8 . Merriam Turkey. 233 
9. Coot. 244 
10. Ivilldeer. 252 
11. Western Mourning Dove. 301 
12. Road-runner .. 311 
13. Burrowing Owl. 328 
14. Broad-tailed Hummingbird. 359 
15. Gila Woodpecker. 382 
16. Red-headed Woodpecker. 385 
17. Mearns Woodpecker. 388 
18. Lewis Woodpecker. 391 
19. Red-naped Sapsucker. 396 
20. Rocky Mountain Sapsucker. 398 
21 . Hairy Woodpeckers. 401 
22. Batchelder Woodpecker. 405 
23. Cactus Woodpecker. 408 
24. Alpine Three-toed Woodpecker. 412 
25. Arkansas Kingbird. 417 
26. Ash-throated Flycatcher. 425 
27. Western Flycatcher. 436 
28. Buff-breasted Flycatcher. 441 
29. Horned Larks. 449 
30. Cliff Swallows. 464 
31. Purple Martin. 468 
