22 
INTRODUCTION. 
About tbe head are seen further : the nostrils, 3, gene- 
rally situated in a depression named the nasal sinus ; the 1 
angle of the mouth, 4 ; the lore, or loral space, between the j|i 
angle of the mouth and the eye ; the eye, 5, in which are ] 
distinguished the pupil or dark central part, the iris or co- ji 
loured circle surrounding the pupil, the upper and lower eye- i 
lids, the supra-ocular ridge, peculiar to the birds of prey, j 
The anterior part of the head above is named the forehead, 
6 ; the upper part, the crown or top, 7 ; the hind part, the || 
occiput, 8. There are also the sides of the head, on which || 
are distinguished the ear-coverts, 9, and the face or fore- ^ 
part in general. 1 
The JVeck may be divided into upper, middle, and lower | 
parts, hind part, sides, and fore part. The upper hind part 
is named the nape, 10 ; the upper fore part the throat, 11, ^ 
its uppermost part sometimes the chin, \ 
In the Body are distinguished : the hack, of which there j 
are the anterior, 12, middle, 13, posterior, 14, regions ; the 
latter also called the r%imp. Also, the scapular region, 15, 
being that of the shoulder-blade and humerus. The sides 
of the body are the parts under the wings. The breast com- 
mences at the lower part of the neck, 16, and extends to the 
end of the sternum, 17 ; from thence to near the tail is the 
abdomen or belly, 18. . 
In the Tail are distinguished, fho tail-quills, or strong fea- 
thers, 19 ; and the upper coverts, 20, and lower coverts, 21. 
The Wings are divided into three regions : the humerus, 
cubitus, and hand. The joint between the cubitus and hand, 
22, is named the flexure, or bend of the wing ; near it are 
the feathers attached to the thumb, 23, named the alula, or 
spurious wing ; the quills attached to the fingers are named 
primary quills, 24, those which cover fhom, primary coverts, 
25 ; the quills attached to the cubitus are named secondary 
quills, 26, their coverts, secondary coverts, 27 ; while the 
smaller feathers on the wing are named the smaller upper 
