200 FALCONID^. 



You7i(/. Above brown, the feathers of the nape, back, and sca- 

 pulars white at base, and more or less broadly margined with pale 

 fawn-colour ; wings much as in the adult, but without any very • 

 broad rufous margins above ; upper tail-coverts brown, tipped with 

 rufous, the outer ones pure white, with a broad subterminal spot of 

 black ; tail ashy brown, shaded with clearer grey, and tipped with 

 whity brown, before which is a slight indication of a dark browu 

 subterminal bar, irregular spots ot the same being on most of the 

 feathers, all of which have the basal part white ; lores whitish, with 

 narrow brown streaks ; head brown, with pale fulvous margins to 

 the feathers, giving a streaked appearance ; sides of face and of neck 

 pure white, streaked with dark browu, more uniform and tinged 

 with rufous on the upper margin of the ear-coverts ; under surface 

 of body pure white, with a few streaks of brown on the side of the 

 breast, represented on the flanks by large arrow-shaped spots, much 

 smaller on the thighs ; tarsal feathers dark brown, varied with 

 white ; under wing- and tail-coverts white, the latter streaked with 

 brown. 



Adult. Above bright chestnut-fawn, with centres of dark brown 

 to the feathers, giving a streaked appearance, the greater wing- 

 coverts brown, broadly but irregularly margined with pale rufous ; 

 head, neck, and interscapulary region white, numerously streaked 

 with dark brown centres to the feathers, broader on the latter, so 

 that it appears nearly uniform brown ; ear-coverts blackish ; cheeks 

 and sides of neck white, with distinct streaks of black ; quiUs deep 

 brown, the primaries externally shaded with silvery grey, less distinct 

 on the secondaries, which are obscurely barred with darker brown 

 and tipped with whitish ; lower surface of primaries white for greater 

 extent of inner web, blackish towards tip, the secondaries ashy 

 white beneath, with remains of cross bars ; upper tail-coverts bright 

 fawn, irregularly marked down the centre with dark brown, and 

 more or less white near the base ; tail pale fawn-colour, shaded with 

 light ashy grey, and mottled with brown towards the base, which is 

 white, as also the inner webs and tips of the feathers ; under 

 surface of body pure white, with faiut fawn-coloured streaks on 

 the chest, the flanks more or less distinctly barred with rufous 

 brown ; thighs bright chestnut-fawn, barred across with dark 

 brown, the tarsal feathers rufous brown ; under wing-coverts 

 white, vrith a few indications of fawn-coloured spots and streaks ; 

 cere yellow ; bill blackish horn-colour ; feet yeUow ; iris brown. 

 Total length 26 inches, culmen 1-9, wing. 18-35, tail 10-7, 

 tarsus 4-5. 



Hab. The south-western States of North America to Mexico. 



a. Ad. St. Real del Monte, Mexico. John Philippe, Esq. [P.] 



b. Juv. St. Mexico. Zoological Society. 

 e. Ad. sk. Mexico. 



d. .Juv. St. California. Purchased. 



