Rectrices. 

 (TailQuilJsJ 



UndepTail 

 Coverts'. 



Venn 

 Remiges {Secondaries) 



Upper Ta il Co verts . 



Nape. 

 UpperBack. \ y 



Crown. 



Lore. 

 (_ Forehead. 



.Cutmen. 

 /Nostril. 



fiemyes {m'njQuills) 



(Primaries.) Abdoinen. 



Hallux. 



Diagram of a bird, showing its chief external characters. 



