Table 55 
BIOGEOGRAPHICAL DISTRIBUTION OF BLACK DUCKS DURING THE WINTERS OF 1955-58 
SS ———lSXXTl—~*CO>7—>—>E—~==[EEEEE_—~HE_[__>____{{"_>——:_&K{[——ce———>————_——>E>—>—~—~>—>——>———XKX<**—*<*Xx<_><*_—*—*—*_*__{*>x*[{]_[{{*_**=_>=[]{{{{=""==—=—===—=>~ 
Chester River Section 32% 
Eastern Bay Section 15 
Choptank River Section 13 
Blackwater-Nanticoke Section Ll 
Lower Kastern Shore Section 
Coastal Section 
Upper Eastern Shore Section 
Central Potomac Section 
Susquehanna Flats Section 
Upper Western Shore Section 
Patuxent River Section 
Ky Fw ® HY WH A NY @ 
Upper Potomac Section 
+ 
Lower Potomac Section 
+ 
Central Wester Shore Section 
Lower Western Shore Section * 
Total 100% 

122 
