784 REPORT OF STATE GEOLOGIST. 



"April 13, 1890. No. 21337. Red-tailed Hawk. Taken 5 miles 

 northwest of town (Waterloo), on the Golden Lake Road, in low, 

 swampy woods on west side of road. Nest, rather large, in a large, 

 leaning ash tree 70 feet from the ground. Bird left nest after I 

 started to climb. Two very large eggs, 1.98 by 2.46 and 2.04 by 2.60, 

 the largest I have seen. Incubation, one-third advanced." 



135. (337d). Buteo borealis harlani (AUD.). 



Harlan's Hawk. 

 Synonym, BLACK HAWK. 



In Marian's Hawk the tail is mottled with rusty, white, gray, and 

 dusky; the.rest of the plumage may vary from that of the typical red 

 tail to nearly black. (Fisher). 



Size, same as B. borealis. 



RANGE. Harlan's Red-tailed Hawk (Buteo borealis harlani), which 

 until recently was considered a species, dwells in lower Mississippi 

 Valley and Gulf States, east to Georgia, and extends casually to Kan- 

 sas, Iowa, Illinois, Indiana and Pennsylvania. 



Nest and Eggs, probably similar to those of B. borealis. 



Accidental visitor. Mr. R. B. Williams, Lebanon, Ind., has in his 

 possession a fine specimen of this Hawk. It was shot and its wing* 

 broken by Mr. W. H. Moler, of the same cit} r , in Perry Township, 

 Boone County, Ind., in September, 1887. He brought it while it was 

 alive to Mr. Williams, who mounted it. This is the first record of the 

 Black Hawk from Indiana. In Illinois, Mr. C. K. Worthen shot one 

 of a pair on the Mississippi River, near Warsaw, Hancock County, in 

 1879. I have in my collection the skin of a specimen taken several 

 years ago by Mr. W. S. Everhart, of Toledo, Cumberland County, 111., 

 in that county, and presented by him to me. This species is so rare 

 that, while its habits and food are probably similar to that. of the typi- 

 cal Red-tailed Hawk, it is of no value to us. Its plumage varies from 

 much the same color of the true borealis to uniform black. The well 

 known Indian Chief, Black Hawk, was probably named after this bird. 



*136. (339). Buteo lineatus (GMEL.). 



Bed-shouldered Hawk. 



Adult. Head, neck, and lower parts, more or less rusty or cinna- 

 mon, transversely spotted or barred with whitish; tail, black, crossed 

 by about six bands of white. Above, reddish-brown, the center of the 

 feathers darker than the edges. Immature. Lower parts, dull 



