238 HYPOTRIORCHIS COLUMBARIUS — PIGEON HAWK. 



transversely with bands of brownish black; rump and lower 

 part of the back lighter, and with the dark bands less 

 numerous. Throat, sides of the neck and upper part of the 

 breast white, with a tinge ol buff, without spots; other 

 under parts same color, with a deeper shade, and with 

 cordate and rounded spots of black on the lower breast 

 and abdomen, and transverse bars of the same black on 

 the sides, under tail coverts and tibiae. Quills brownish 

 black, with transverse bars of yellowish white on the inner 

 webs. Tail brownish black, with transverse bars of cine- 

 reous, very pale and nearly white on their inner webs, and 

 narrowly tipped with white. Cheeks with a patch of black, 

 most narrow and clearly defined in the adult bird, and 

 separated from the color of the back of the head by a white 

 space; back of the neck mixed with yellowish feathers, 

 forming an irregular color. Bill light blueish horn color, 

 paler at the base; legs and feet fine yellow. The sexes are 

 alike. 



"Female, total length 19 to 29 inches; wing 14J to 15 

 inches; tail 7^ to 8 inches. Male and young smaller.''' 



This bird is a little larger than the European Peregrine 

 Falcon, and the young, the above quoted author says, 

 differ. 



Genus Hypotriorchis, Boie. 



Size small; tarsus lengthened and rather slender. Toes 

 long, slender, and furnished with sharp curved claws. In 

 its other characters it resembles the typical falcons. The 

 species scattered over different parts of the world. 



Hypotriorchis Columbarius, Linn. — The Pigeon Hawk. 



Wilson's Amer. Orn., H., pi. 15, fig. 3; Audubon's B. of 

 Am., Oct. ed., T., pi. 21. 

 This handsome little Hawk is of pretty common occur- 



