20 



Less brownish, purer grey 

 60b. Astur gentilis sdivedowi Menz., 

 Eur. Russia, p. 439 (1882). 

 Siberian Goshawk. 



Orn. Geogr. 



" White " race. 

 60c. Astur gentilis candidissimus Dyb., Bull. Soc. 

 Zool. France, viii., p. 353 (1883). 

 Kamtschatka Goshawk. 



Above bluish ash, with blackish shaft stripes ; 

 crown deeper black ; below closely freckled 

 or vermiculated, instead of barred ; tail bands 

 indistinct.* 

 61. Astur atricapillus (Wils.), Am. Orn., vi., pi. 52, 

 fig. 3 (1812). 

 American Goshawk 



Markings of lower parts fine and delicate and 

 so dense as to present a nearly uniform appear- 

 ance ; tail bands obsolete. 

 61a. Astur atricapillus striatulus Ridgw., Hist. N. 

 Am. Birds, iii., p. 240 (1874). 

 Western Goshawk. 



Above sepia brown ; head, neck and upper 

 mantle blackish slate ; nape varied with white ; 

 tail with 6 irregular darker bands ; below 

 white, thickly and broadly barred with 

 blackish. 



Astur hensti Schl., Mus. P.B. Revue Accipitr., 

 p. 62 (1873). 

 Henst's Goshawk. 



62. 



B. 



Sides of crown uniform with crown itself ; no 

 distinct red nape band ; maximum length 

 20 in. (?) 



N, Asia to 

 Thibet. 



Kamtschatka 



N. America 

 (except 

 Pacific side), 

 ace. in Brit. 

 Isles. 



W. North 

 America, 

 Sitka to 

 Sierra 

 Nevada. 



Madagascar. 



* The young of most species of the genus Astur, both in the typical 

 group and many succeeding ones, are brown above, the feathers more or less 

 margined with ochraceous or rufous, and ochraceous or creamy white below 

 with longitudinal markings, usually in the form of streaks on throat and large 

 oval spots on breast and flanks, although in some species the flanks may be 

 barred. The characters given, as in other genera, are those of adult birds. 



