BuRNS—Own BROAD-WINGED Hawk. 2a0 
gathers in small flocks for migration, together with the 
Ictinia in late summer, and usually all are gone from Mis- 
sissippi by Sept. 1. 
Taverner and Swales, who have made extensive observa- 
tions on Lake Erie at the southernmost point of Canadian 
mainland, Point Pelee, Ont., inform us that it arrives about 
the last of August, but does not appear in any numbers until 
the main body comes down with the Sharp-shins. Even 
then not more than a dozen have been seen at any one time— 
Sept. 18, 06. Keays listed but three in Sept. 01. Later, B. H. 
Swales writes me that as yet no spring records, but in the fall 
he has found the birds in small numbers from Aug. 20 (10) 
to Oct. 14 (06). The birds cross the lake in sight of the 
chain of islands extending to the Ohio shore. J. Claire 
Wood has observed no autumnal flight in Wayne Co., Mich., 
even when the southward movement is at its height in Sep- 
tember, not more than 6 or 7 birds are seen in a day, and 
more often none. 
At Portage la Prairie, Manitoba, George E. Atkinson re- 
ports that about the middle of August the young and fall 
plumaged birds are noted commonly about the city. It seems 
more affected by low temperature than the other hawks and 
leaves usually in September. Hatch states that it departs 
from Minnesota about Sept. 1. J<umlien says it sometimes 
appears in Wisconsin in immense flocks, many hundred can 
be seen at cne time, remembering one such flight in 1871, 
when he killed six at a single discharge. At the time of the 
autumnal flights they are very fat and seem to be principally 
young birds. Later Kumlien and Hollister state that this 
migration seldom lasts but a day ‘or two and is of irregu- 
lar occurrence, and the flocks are invariably of this species 
alone. 
In Missouri, Widmann finds the migration from the north 
brisk during the fourth week in September, when on some 
days dozens may be seen sailing over in loose flocks. It 
does not stop over as long as the Red-tail and Red-shoulder, 
but small parties may be met with during the first half of 
