Burns-—ONn BroAD-WINGED HAWK. 245 
limb; and another instance near Fairfield, Conn., May 14, °89, 
by a pair very much attached to the home site on Heatherstone 
hill, built 15 feet up and 12 feet out fromthe body of a large 
white oak (Hamlin ms.). A set was taken by Forge in Man- 
atoba from the top of a stump 30 feet high (Jackson ms.). 
The height from the ground varies from 3 feet in the broad- 
forked bole in Minnesota as recorded by George Cantwell, to 
the 87 foot oak of Delaware Co., Pa., essayed by Harry G. 
Parker, and the 90 foot biack ash of Kalamazoo, Mich., made 
famous by Dr. Gibbs. 
One hundred and sixty-seven nests in the Canadian and 
Transition zones average 33 feet from the ground, the west 
averaging 10 feet less than the east. Massachusetts much low- 
er than those of the heavy timber of New Hampshire and Con- 
necticut, Manitoba and Minnesota not infrequently exhibit 
nests at altitudes of 10 feet. In the upper Austral zone, 112 
nests average 40 feet; and 12 nests in the lower Austral zone 
average 49 feet. Occasionally we hear of some inaccessible 
(Swales, Wayne Co., Mich.; N. G. Wood, Ann Arbor, Mich. ; 
Smyth, Blackburge. Va., all in large oaks; and Fleming, Ems- 
dale, Dist. Parry Sound, Ont., in large tamarack). 
Owen Durfee writes me that at times, it uses'a flat platform 
on the top of a branching stub and this seems to be more of 
its choice for a site in the heavier timber on the Connecticut 
coast and in the northern woods. Jn this case, when the tree 
branches evenly making a flat platform, the nest will often 
have barely enough sticks on its circumferance to keep the 
eggs from rolling out. At such times it is difficult to locate 
the nest, if elevated, unless the bird is seen leaving it Chas. 
C. Richards descrihes a nest 70 feet up in a hig hemlock, made 
of hemlock sticks and twigs, almost invisible from the ground. 
Harry S. Hathaway and John H. Flanagan found a singular 
nest ‘containing a runt egg, May 13, 1906, in Rhode Island. 
It was 15 feet up in a red! maple, the nest was about as large 
as the sitting female, and had the appearance of having lodged 
in the forks formed by a limb about 114 inches in diameter 
growing almost parallel with the trunk of some 6 inches. 
