xxviii 
FIGURE 
73. 
74, 
75. 
76. 
77. 
78. 
79. 
80. 
81. 
82. 
83. 
84, 
85. 
86. 
87. 
88. 
89. 
90. 
91. 
92. 
93. 
94. 
95. 
96. 
97. 
98. 
99. 
100. 
101. 
102. 
103. 
104. 
105. 
106. 
107. 
108. 
109. 
110. 
111. 
112. 
Bill and tail of Brown Creeper 
(a) Bill of White-breasted Nuthatch, (b) bill aud wing af 
Chickadee 
Bill and wing of Golden-crowned Kinglet, (b) bill of Blue- 
gray Gnatcatcher . 
(a) Bill of Robin, (b) bill and wing of Bluebird — 
Great Auk . 
First primaries of ‘@) Herring Gull, (b) " Ring-billed Gull, 
Gs oo Gull, (d) Franklin’s Gull, (e) Bonaparte’s 
a pi nene of ‘@) Caspian Tern, (b) Royal Tern, (c) 
Common Tern, (d) Arctic Tern, (e) Roseate Tern . 
Head of Least Sandpiper : 
Head of Red-backed Sandpiper 
Wing of Solitary Sandpiper 
Head of Semipalmated Plover . 
Head of Wilson’s Plover . : 
Tail of Sharp-shinned Hawk . : 
Tail of Cooper’s Hawk . 
Primaries of Red-shouldered Hawk . 
Primaries of Broad-winged Hawk . 
Foot of Golden Eagle : 
Foot of Bald Eagle : 
Tail-feathers of Yellow-billed Cuckoo 
Tail-feathers of Black-billed Cuckoo 
Tongue of Pileated Woodpecker 
Whip-poor-will 3 
Head of Crested Flycatcher 
Head of Prairie Horned Lark . 
Starling;— Summer plumage . 
Starling;—Winter plumage 
Head of Cowbird : : r 
Head of Purple Finch. ‘ : : 
Head of Redpoll . : é 
Hind-toe of Lapland Longspur_ A 
Tail-feathers of Vesper Sparrow - 
Tail of Grasshopper Sparrow . F 7 
Head of Seaside Sparrow 4 F 
Head of Lark Sparrow j P 5 
Head of Chipping Sparrow. . . 
Head of Fox Sparrow : A 
Head of Dickcissel . = 
Barn, Cliff, Tree, and Bank Swallows 
Section of primary of Rough-winged Swallow 
Head of Red-eyed Vireo . 
113. Wing of Warbling Vireo. . . 
LIST OF ILLUSTRATIONS 
PAGE 
131 
131 
132 
132 
149 
154 
164 
251 
252 
257 
266 
267 
293 
294 
297 
298 
301 
302 
319 
320 
327 
332 
341 
349 
355 
356 
360 
377 
381 
385 
386 
389 
393 
395 
398 
405 
412 
425 
