17 
18 
19 
20 
21 
22 
23 
24 
25 
26 
27 
28 
39 
40 
41 
42 
Upper tail-coverts. 
Tail feathers. 
First primary. 
Primaries. 
Tarsus. 
Hind toe. 
Outer toe. 
Middle toe. 
Inner toe. 
Abdomen or belly. 
Secondaries. 
Side. 
Strongly hooked bill of hawk. 
Faleate bill of Mexican Crossbill. 
Tubular nostril of Fulmar Petrel. 
13 
29 
30 
31 
32 
33 
34 
35 
36 
37 
38 
Greater wing-coverts. 
Middle wing-coverts 
Breast. 
Lesser wing-coverts. 
Carpal joint. 
Jugulum. 
Throat. 
Chin. 
Gape. 
Lower mandible. 
39a Cere on bill. 
TYPES OF BILLS AND FEET 
43 
44 
45 
Raptorial foot of Long-eared 
Owl. 
Carpus 
p) 
\ You Zeeh 
4 

2h. 
ARON 
oP \ Pp 
ER 
~/ (0 Ons oo 
ens) iO 
Alulg 
\doverts 

=, 
iMATY Ssv— 
Lobate foot of Pied-billed Grebe. 
Palmate foot of duck. 
Totipalmate foot of cormorant. 


DIAGRAM SHOWING THE VARIOUS FEATHER TRACTS ON THE WING OF A BIRD 
(FROM CORY’S BIRDS OF EASTERN NORTH AMERICA) 
