LIST OF ILLUSTRATIONS 
FIGURE 
114. 
115. 
116. 
117. 
118. 
119. 
120. 
121. 
122. 
123. 
124. 
125. 
126. 
127. 
128. 
129. 
130. 
131. 
132. 
133. 
134. 
135. 
136. 
Head of Black and White Warbler 
Head of Worm-eating Warbler 
Head of Blue-winged Warbler 
Head of Golden-winged Warbler 
Head of Parula Warbler . 
Head of Myrtle Warbler 
Head of Magnolia Warbler. 
Head of Chestnut-sided Warbler 
Black-throated Blue Warbler . 
Head of Blackpoll Warbler 
Head of Prairie Warbler 
Head of Ovenbird . : 
Head of Kentucky Warbler 
Head of Maryland Yellow-throat 
Head of Wilson’s Warbler 
Head of Hooded Warbler 
Head of Canadian Warbler 
Head of Yellow-breasted Chat 
Head of Short-billed Marsh Wren 
Head of Long-billed Marsh Wren 
Head of Red-breasted Nuthatch 
Head of Tufted Titmouse : 
Head of Golden-crowned Kinglet 
