106 GREEN -NECKED ROLLER. 



the Senegal we have never yet seen. Of that now 

 before us we fortunately possess a young specimen, 

 which might he easily mistaken for a different hird, 

 since the two outermost feathers of the tail, instead 

 of being longer than the others, are a full inch 

 shorter ; the green of the head, neck, and body be- 

 neath is light, obscure, and verging to brown ; there 

 is no white on the front, and but very little on the 

 chin ; the azure blue on the shoulders occupies, also, 

 a much narrower space. 



In the adult the prevalent colour of the whole 

 plumage is a light, changeable, blue or sea-green. 

 The ferruginous colour of the back commences only 

 at the interscapulars, and not, as in C. Senegala 

 (as figured in the PL Enl. 326), immediately behind 

 the nape. This ferruginous colour covers the middle 

 of the back, the scapulars, the quill-covers, and part 

 of the tertials. The shoulders and lesser wing-covers 

 are of a splendid ultramarine blue, so also is the 

 rump and upper tail-covers ; all the quills are like- 

 wise dark blue, except at their base, where they are 

 of the same light green as the body and the greater 

 wing-covers. The front of the head, the eyebrows, 

 and the chin, are white ; but all the rest of the under 

 plumage and the inner wing-covers are uniform light 

 sea-green ; such also is the chief colour on the tail, 

 but the four middle feathers are blackish green, and 

 the base of the others more or less dark blue. The 

 narrow prolongation of the two outermost are black ; 

 their length depends upon age ; when fully grown, 

 they exceed the others by five inches. 



