22. ASTUR. 



93 



Head and foot of A. palumbarms. 



Range. The whole of Europe, Asia, Africa, and Australia ; Oceania 

 as far as the Fiji Islands ; all North America and the Brazilian sub- 

 region of South America. 



Key to the Species. 



a. With a conspicuous line of white skirting the crown 



from above the hinder ear-coverts. 

 a'. Underparts distinctly barred with greyish brown. 

 a". Larger : tarsus much shorter in proportion 



( ^ =30, 5 =3-4) ^jrt^MJHfianMS, 95. 



h". Smaller : tarsus much longer in proportion 



( cJ =3-15, 2 =3-7) he^isti, p. 97. 



h'. Underparts merely freckled with ashy, not barred atricapiUus, p. 97. 



b. Sides of crown uniform with crown itself. 

 c'. No red nape-band. 



c". Centre tail-feathers with large white spots on 

 inner web. 



a'". Underneath banded tachiro, p. 99. 



a. Bars narrow ; head slaty brown . . tachiro, 



p. 99. 

 /3. Bars broad; head bluish slaty; sides of body 

 uniform rufous. . . . macroscelides, p. 100. 

 h'". Underneath unifonn. 



fl*. Thighs clear vinous toussenelUi, p. 101. 



6'. Thighs white trinvtatns, p. 101. 



d". Central tail-feathers ashy grey or ashy brown, 

 with no white spots on inner web. 

 c'". Axillaries and under sm-face rich vinous red, 

 inclining to chestnut. 



c*. Larger: inner web of quills barred tnnelleri, p. 102. 



(f*. Smaller: innerweb of quills nearly uniform htof/aster, ^i. 104. 



d'". Axillaries pale salmon-rufous si/lvesiris, p. 104. 



e'". Axillaries pure white, huffy white, or white 

 narrowly barred with rufous, greyish, or 

 black, 

 e*. Thighs white, barred with black; occipital 

 crest distinct. 



