262 Trans. Acad. Sci. of St. Louis. 



were taken between March 19th and April 12th. The nests are 

 usually found in very tall trees in the Missouri bottom lands 

 and less frequently in timbered places elsewhere in the county. 



The bulk of the returning migrants pass through during the 

 latter part of October and early November. The wintering 

 birds are to be found hunting in the prairie regions as well as in 

 the timbered bottoms. 



This hawk is a great destroyer of vermin and instead of be- 

 ing shot on sight by farmers and sportsmen should be protected 

 and encouraged to remain. 



BUTEO BOREALIS KRiDERi Hoopes. Krider's Hawk. 

 Occasional visitant during migration. 



Krider's Hawk has been observed a few times on the prairie 

 regions south of the Country Club district near open timbered 

 places. On October 15, 1916, one was studied at close range 

 and identification was made certain. 



A specimen taken by Bankers was killed October 16, 1898. 



This light phase of the Red-tail is nowhere common but this 

 vicinity is a favorable locality to look for it during migration 

 and possibly in winter. More data relative to its local occur- 

 rence is desired. 



BUTEO BOREALIS CALURUS Cassin. Western Red-tail. 

 Rare winter visitant. 



A Western Red-tail was closely observed in the Brush Creek 

 timber just inside the state line on November 5, 1916. Many 

 Red-tails suspected of belonging to this dark race are seen 

 every winter but only one specimen has been taken to prove its 

 occurrence in the vicinity November 7, 1913. 



BUTEO BOREALIS HARLANI (Audubon). Harlan's Hawk. 

 Casual visitant. 



A specimen of this southern hawk, taken on a farm about 

 twelve miles from Kansas City, was mounted by Kreite, a local 

 taxidermist, in 1916. The specimen was not personally examined 

 but is vouched for by Mr. J. F. Frazier, whose identification 

 cannot be questioned. 



BUTEO LINEATUS LINEATUS (Gmelin). Red-shouldered Hawk. 

 Uncommon migrant and summer resident. 



Widmann says that as a summer resident in Missouri this 



