( 377 ) 



BROAD-WINGED HAWK. 



Falco pennsyl va NIC us. 



PLATE XCI. Vol. I. p. 461. 



I HAVE not been able to trace the movements of this bird farther 

 eastward than the vicinity of Pictou in Nova Scotia, where several spe- 

 cimens have been procured by my friend Thomas MacCulloch, Esq., 

 one of which is in my possession. It does not appear to go farther 

 southward than the State of Maryland, unless driven by very intense 

 cold. It is more abundant in Pennsylvania, New York, and Connec- 

 ticut, than in any other district, and is thus apparently more restricted 

 in its range of migration than most of our Hawks. I received a iine 

 pair in excellent preservation from William Cooper, Esq. of New 

 York. 



The eggs of this bird measure two inches and a half in length, an 

 inch and five-eighths in breadth, and are of a rather roundish form, 

 varying from dull greyish-white, blotched with dark brown to yellowish- 

 white, rather faintly clouded, especially towards the smaller end, with 

 pale purplish-grey, dull yellowish-brown, and dotted with various light 

 tints towards the larger end. 



An adult Male. Length to end of tail 18f inches, to end of wing 

 17, to end of claws 17 ; extent of wings 38 ; bill along the ridge li|, 

 along the edge of lower' mandible also 1^| ; height of bill at the base 

 i§ ; wing from flexure llf ; tail 7t^j ; tarsus 3 ; first toe i§, its claw 

 fji; second toe fg, its claw i?» ; third toe 1/|, its claw ^%; outer toe 

 lj|, its claw ||. 



The roof of the mouth is flat, with two longitudinal papillate ridges, 

 and an anterior tuberculate ridge ; its width 1 inch 1 twelfth. The 

 tongue is rather short, measuring 10 twelfths of an inch in length, 

 emarginate and papillate at the base, longitudinally concave above, with 

 the sides nearly parallel, its breadth i inch, the tip rounded. Posterior 

 aperture of the nares linear-oblong, 4^ twelfths in length, with an an- 

 terior slit 5 twelfths long. The oesophagus is 6 inches long, inclines to 

 the right side as usual, and there expands into a large crop, of which 



