Ontario 
An impressive series of recoveries (962) is available from 
bandings at Lake Scugog, Ontario, primarily from 1920 to 1926. Also 
ine luded is one year, 1941, for Toronto. 
Maps of the plotted direct and indirect recoveries (figs. 11 
and 12) show an explosive pattern of dispersal. It covers most of the 
United States from the Atlantic seaboard in New Jersey to Florida and 
Louisiana on the Gulf Coast and from Texas north to western Kansas. 
The indirect recoveries are distributed through most of the United 
States east of the Plains and in Canada from Manitoba to western 
Quebee. New England and eastern Canada are apparently of little or 
no importance as far as the Ontario population is concerned because 
only 5 records are to be found. 
Both direet and indirect recoveries show a southern Atlantic 
coastal grouping and a dispersal through the Ohio and Mississippi 
Valleys. For the most part, large river systems seem to be followed, 
although there are many scattered reeoveries throughout the Mississippi 
Valley and the Appalachian mountain country. There are also a few areas 
of unusual concentration: the heaviest is along the shores of Lake Erie 
in Ohio, Michigan, and Ontario. These recoveries, located southwest 
of the banding station, undoubtedly are largely part of the Mississippi 
Basin flight with a minor portion mixing with the south Atlantic group 
from the Carolinas south. There is a fairly heavy concentration of 
reeoveries in coastal South Carolina and a scattering between this 
point and the Lake Erie concentrations. There is another grouping of 
recoveries in the Chesapeake Bay marshes of Maryland and Virginia to 
northern North Carolina, 
New Jersey and the outer shores of Delaware and Maryland 
show a marked scarcity of direct recoveries from Lake Scugog, amounting 
to about 4 percent. This is in contrast to those of the northeastern 
blacks which are concentrated along these outer shores. Only on the 
eastern shore of Virginia do the northeastern and Ontario birds show 
their first important mingling. 
The majority of the Ontario blacks going into the Middle 
Atlantic area apparently occupy the inner marshes of Chesapeake Bay 
in Maryland and the western or mainland shore of Virginia. Northeast- 
ern North Carolina is important also with this group and there is un- 
doubtedly some coastal movement on into South Carolina. The distribu- 
tion of inland recoveries would lead one to believe that many of the 
South Carolina (and southern North Carolina) blacks arrive by inland 
routes, probably crossing the Appalachian Mountains. Most of the black 
ducks bound for the Middle Atlantic states probably fly directly from 
Ontario across central New York and Pennsylvania. 
~21- 
