PL XLIX.FI6.1 

 TINNUNCULUS SPARVERIUS 

 SPARROW HAWK. 



fig. a. 



AC CIPHER CO OPERI. 

 COOPER'S HAWK. 



FIG. 3. 

 BUTEO LINEATUS. 

 RED-SHOUIDERED HAWK, 



FIG. 4. 

 BUTEO BOREALIS. 

 RED -TAILED HAWK. 



