119 
the feet in pairs, two before and two behind: room xii. 
the exterior hind toe is often reversible. In 
the first family of this order, consisting of the 
Cuckows, the bill is more or less curved. In 
the second, it is nearly straight, and conical. 
Case 15. Cuckow ( Cuculus canorus ), Green 
Woodpecker ( Ficus viridis ), greater and lesser 
Spotted Woodpecker (P. major and minor ), 
Wryneck ( Yunx torquiila). 
The Anisodactylous Birds have the bill 
curved or straight; always subulate and slen¬ 
der, and narrower at the base than the fore¬ 
head. Toes, three before, one behind, the pos¬ 
terior generally long. 
Same Case — Nuthatch ( Sitta Europcea ), 
Creeper ( Certhia familiaris), Hoopoe ( JJpupa 
epops ). 
The Halcyons have a moderate, or long, 
pointed, quadrangular bill, slightly curved or 
straight; legs with very short tarsi; three toes 
before, united, and one behind. 
Same Case—Bee-Eater ( Merops apiaster ), 
Kingfisher ( Alcedo ispida ). 
The Chelidonians have a very short de¬ 
pressed bill, very wide at the base, and the 
upper mandible curved at the point; feet short; 
toes, three before, divided, or united at the base 
by a short membrane, one behind; the latter 
often reversible. 
Same 
