141. 
142, 
143. 
144. 
145, 
146, 
147. 
148. 
149. 
150. 
151. 
MAPS 
CONTENTS-—-Continued 
Page 
Ecological distribution of Ruddy Ducks, 
1958-59 season ..... ; . ie ee” eg ee 
Biogeographical distribution of Ruddy Ducks , 
winters of 1955-58 .... ate Sr EO 
Biogeographical distribution of" Ruddy Duckes 
1958-59 season ., . CEES eS tee ee 
Foods of 11 Ruddy Ducks. fresh estuarine bays of the 
Gunpowder and Potomac Rivers .. . 202 
Foods of 9 Ruddy Ducks, brackish estuarine pays Sof 
the Chester, Patuxent, and Potomac Rivers ... . 203 
Foods of 9 Ruddy Ducks, turbid brackish estuarine 
bays of Fishing Bay and the Nanticoke River. . 204 
Foods of 10 Hooded Mergansers from various habitats 205 
Ecological distribution of American Coot popula- 
tions, 1958-59 season .. oF «i Gee 1205 
Biogecgraphicat distribution of hmeeicen Coots, 
winters of 1955-59 .... se « 206 
Biogeographical distribution es Aneeican Coots, 
1958-59 season... Ae Bel ay toe et Ok Rn, wily BERT 
Harvest areas of Aneeacan: Coots banded... ... . 208 
oe e ew we ew eh hvehUmwemhUmwemhUmmhUm™hUm™hlUmw©™CU«wWEnN pocket inside back cover 
Figure 1.--The Upper Chesapeake Region. 
Figure 2.--Estuarine Bay Communities. 
iT 
2 
Figure 3,.--Tidal Marsh Communities, 
Figure 4.--Biogeographical Sections. 
