40 ORNITHOLOGY AND OOLOGY. 



I have found several nests of this species in different 

 localities, all of which were placed in high forks of trees. 

 They were built of twigs and sticks of different sizes, and 

 usually were of large size. A nest that I found in Milton, 

 Mass., was built in a fork of a large oak^ against the trunk, 

 about forty feet from the ground. It was of a bulk nearly 

 sufficient to fill a bushel-basket: it was considerably hol- 

 lowed, and lined with dry grass and leaves. The eggs, 

 two in number, are in the cabinet of Dr. Brewer, who 

 describes them as follows : 



" Two others belonging to this species, obtained in Milton, Mass., 

 by Mr. E. A. Samuels, and identified by securing the parent birds, 

 may be thus described: One measures 2-j^ by 1|{[ inch. The 

 ground-color is a dirty-white, and is marked with large blotches, 

 lines, and clottings of umber-brown of various shades, from quite 

 dark to light. The other is 2 inches by l^g, has a bluish-white 

 ground, and is only marked by a number of very faint blotches of 

 yellowish-brown and a slate-drab. Except in their shape, which is 

 an oval spheroid, slightly pointed at one end, these bear but very 

 slight resemblance to each other, though taken at the same time 

 from one nest." 



A number of specimens in my collection exhibit as great 

 a variety as the above instances; and one specimen, obtained 

 in Connecticut, which measures 2.12 by 1.65 inches, has a 

 dirty yellowish-white ground-color, which is nearly covered 

 with blotches of faint-purple ; the appearance being as if 

 the purple spots were laid on, and then a coating of white- 

 wash laid over them. 



BUTEO PENNSYLVANICUS. Bonaparte. 

 The Broad-winged Hawk. 



Falco Pennsylvanicus, Wilson. Am. Orn., VI. 92 (1812). Aud. Orn. Biog., 1. 161. 

 Falco Wikmii, Bonaparte. Jour. Phila. Acad., III. 348 (1824). 



DESCRIPTION. 



Adult. Entire upper parts umber-brown; feathers on the occiput and back of 

 the neck white at their bases ; throat white, with longitudinal lines of brown, and 



