THF. BIRD BOOK 



Derby Flycatcher 



448. Cassin's Kingbird. 



Tyravnus vocifcrons. 



Range. — Western United 

 States from the Rocky Moun- 

 tain region to California, and 

 from Wyoming southward. 



This species is like the last 

 except that the throat and 

 breast are darker. Their 





Buff 



habits, nesting habits and 

 eggs are indistinguishable 

 from those of the other Ty- 

 rant Flycatchers, and they 

 are fully as courageous in the 

 defense of their homes 

 against either man or bird, 

 their notes resembling those 

 of the common Kingbird of 

 the east. 



449. Derby Flycatcher. Pitaiii^us sulphurdht.s derhianns. 



Range. — Mexico and Central America, breeding north to southern Texas. 

 This handsome bird is the largest of the Flycatcher family found in the 



United States, being 11 inches in length. It has a black crown enclosing a 

 yellow crown patch; a broad black stripe from the 

 ,. ' ' bill, through the eye and around the back of the 



head, is separated from the crown by a white fore- 

 head and line over the eye; the throat is white 

 shading into yellow on the underparts. They are 

 abundant in the interior of Mexico, but can hardly 

 be classed as common over our border, where they 

 nest in limited numbers. Their nests are unlike 

 those of any of our other Flycatchers being large 

 masses of moss, weeds and grass, arched over on 



top and with the entrance on the side. The three or four eggs are creamy white, 



sprinkled chiefly about tlic large end with small reddish brown or umber spots; 



size 1.15 X .85. 



Oi-pamv Avhitc 



284 



