656 PATAGONIAN EXPEDITIONS: ZOOLOGY. 



Tail, 7.25 inches. 



Tarsus, 1.90 inches. 



Adult female. P. U. O. C. No. 7902, near Coy Inlet, coast of Pata- 

 gonia, 19 October, 1896. J. B. Hatcher, collector. Or. No. 214. Total 

 length, 21.00 inches; wing 13.90; culmen, without cere i.oo; with cere, 

 1.25; tail 7.90; tarsus 2.10. 



Fig. 334. 



Falco cassini. Adult male, P. U. O. C. 7903. Coy Inlet, Coast of Patagonia. 

 About one-fourth natural size. 



Color. — Adult male cited. — Head : Forehead and a triangular spot in 

 front of eye dull white ; crown dull black, each feather margined and 

 tipped with bluish lead-color so broadly as to almost conceal the dark, 

 sagittate-shaped central portion of each feather; region above the eye and 

 moustachial streak, as well the ear-coverts and cheeks, deep black, unshaded 

 except that the ear-coverts show light edges to some of the feathers. 



Neck : Above and on the sides like the crown, but the bluish lead-color 

 does not prevail, showing only as a narrow edging to the dark feathers ; 

 chin, throat and lower neck pure white and immaculate. 



