124 PEREGRINE FALCON. 



streak beneath the auriculars, greyish black, 

 shading into a deep bluish grey on the back 

 and shoulders, rump and tail coverts ; the centre 

 of each feather on the back darker, but on the 

 scapulars having the shaft only conspicuous, and a 

 slight irregular clouding towards the tip of the 

 feather ; on the rump arid tail coverts the grey is 

 paler, and the feathers are indistinctly formed 

 with greyish black ; the quills are greyish black, 

 with pale edges, slightly tinged with grey on the 

 outer webs, the three first are darkest ; on the 

 lower side they are obscurely spotted on the 

 inner web with reddish white ; the second is the 

 'ongest in the wing, and the first only is notched, 

 (see wood cut, p. 106 ;) they reach within half an 

 inch of the tip of the tail ; the tail is nearly square, 

 bluish white, with a tint of yellowish grey, pale 

 at the end, and narrowly bound with greyish 

 black ; the chin is white ; the throat and breast 

 are cream-yellow ; the shafts of the feather on the 

 latter dark, and shewing a very narrow streak ; 

 from the breast downwards the lower parts are of 

 a pearl-grey, tinted with rufous, the shafts of the 

 feathers appearing very marked, and having 

 those feathers on the lower part of the breast 

 with a deep transverse spot, which gradually 

 changes into bars, more indistinctly marked on 

 the thighs and lower tail coverts ; bill is bluish 

 black, yellowish white toward the base of the 



