APPENDIX A 



d. Under parts unmarked white Osprey. 

 dd. Under parts marked. 

 e. Upper parts slate gray; under parts white, 



without rufous markings. 



f. Throat and upper breast immaculate white; 

 belly streaked and barred with black ; under 

 part of tail dark gray Duck Hawk, 

 ff . Throat, breast and belly streaked and barred 

 with blackish; under part of tail light gray 

 Goshawk. 



ee. Upper parts light pearl-gray; under parts 

 whitish with a few rufous markings; rump 

 white Marsh Hawk, cf 

 eee. Upper parts slate; under parts marked with 



rufous. 

 f. Under parts without cross-bars Pigeon 



Hawk. 



ff. Under parts with rufous cross-bars. 

 g. Tail square at end; length 16 in. Sharp- 

 shinned Hawk, 

 gg. Tail decidedly rounded at end; length 17 



in. Cooper's Hawk, 

 ceee. Back fuscous, 

 f. Rump white Marsh Hawk. 9 

 ff. Rump not white. 



g. Shoulders rich rufous; under parts heavily 

 marked with same; length 19 in. Red- 

 shouldered Hawk. 



gg. Shoulders not as highly colored; length 

 1 6 in. ; back browner; primaries unbarred, 

 tarsi scales distinct Broad-winged 

 Hawk. 



ggg. Shoulders not as highly colored; back 

 grayer; primaries barred; tarsi scales 

 distinct; cap blacker; length of wing 

 over 9 in. Cooper's Hawk, 

 gggg. Shoulders not as highly colored; back 

 grayer; primaries barred; tarsi scales 

 indistinct; cap grayer; length of wing 

 under 9 in. Sharp-shinned Hawk. 



78 



