HAWKS 9 



bill. It is rarely seen north of southern Florida. The 

 nest is placed in bushes or among reeds. The 2-3 eggs, 

 which are heavily marked with brown, are laid in March. 



MARSH HAWK 

 Circus hudsonius. Case 3, Fig. IS 



The immature bird and adult female are dark brown above, 

 reddish brown below, but, in any plumage, the species may be 

 known by the white upper tail-coverts which show clearly in 

 flight. L., male, 19; female, 22. 



Range. North America, wintering from New Jersey southward; 

 migrates northward in March. 



Washington, common W. V., July-Apl. Ossining, tolerably 

 common S. R., Mch. 6-Oct. 30; a few winter. Cambridge, com- 

 mon T. V., Mch. 20-Nov. 10, one breeding record. N. Ohio, 

 not common S. R., Mch. 5-Nov. 30. Glen Ellyn, S. R., several 

 pairs, Apl. 4-Nov. 6. SE. Minn., common S. R., Mch. 6-Nov. 1. 



The Marsh Hawk quarters low over the fields turning 

 sharply here and there to follow the course of a meadow 

 mouse in the grass forest below. As a rule the bird is 

 silent but in the mating season he repeats a 'screeching' 

 note. The nest is made on the ground in the marshes; 

 the 4-6 white eggs are laid in May. 



SHARP-SHINNED HAWK 

 Accipiter velox. Case 1, Figs. 11, 12; Case 3, Figs. 7, 8 



The sexes differ only in size, the female being much the larger. 

 There is a marked difference in color between adult and immature 

 birds, the latter being more commonly seen. L. male, 11 J; 

 female, 13 J. 



Range. North America; wintering from Massachusetts south- 

 ward. 



Washington, common P. R. Ossining, common P. R. Cam- 

 bridge, common T. V., Apl. 3-May n; Sept. 5-Oct. 25; rare 

 S. R., uncommon W. V. N. Ohio, not common P. R., a few 

 winter. Glen Ellyn, not common S. R., Mch. 19-Dec. 9. SE. 

 Minn., common S. R., Mch. 28-Dec. 28. 



This small, bird-killing Hawk dashes recklessly after 

 its victims, following them through thick cover. It is 



