GLOSSAET OF SPECIAL TEEMS 



63 



Cheek — The area on the lower side of the head between the eye and throat. 



Chest — The upper part of the breast, just below the fore-neck. 



Chin — The area on the under side of the head included between the branches 



of the lower mandible or jaw. 

 Claw — The horny sheath on the terminal joint of any toe. 

 Crest — A more or less lengthened tuft or group of feathers on the top of the 



head, which is either permanently erected (Hooded Merganser, male), or 



capable of being elevated at will (Mountain Quail). 

 Crissum — See Lower Iail Coverts. 

 Cross-ridges (on bill) — The horny flutings on the sides of the bill in ducks, 



geese and swans; these are not to be confused with the sharper "teeth" on 



the opposed surfaces of the mandibles of mergansers. 



Bcnd of 



Fig. 2. Outer surface of spread wing of Green-wnnged 

 Teal showing names of regions and feathers employed in 

 descriptions. One-half natural size. 



Culmen — The upper ridge or profile of the bill. 



Ear Coverts — See Ear Kegion. 



Ear Eegion — The area over which the feathers (ear-coverts) which cover the 



external ear opening are distributed. 

 Flanks — ^The hindermost feathers on the side of the body, included between 



the rump and belly, and overlapping the thigh. 

 Forehead — The area just above the base of the upper mandible of the bill; 



situated in front of the "top of head." 

 Fore-neck — The lower throat, between the throat proper and the breast. 

 Forepart of Body — That part of the body nearest the head; in general, the 



region forward of the bend of the wing. 

 Greater (wing) Coverts — The hindmost row of covering feathers on the outer 



side of the wing, overl>ang the bases of the secondaries and tertials; the 



outer margins of these feathers are exposed. 

 Hind-neck — The middle of the neck behind. 



