Genus HYDROCHELIDON

Bill short and slight, moderately compressed; legs and feet small; webs between the toes deeply emarginate, so that the feet appear only half-webbed ; claws long and curved. Wings long, exceeding the tail when closed ; tail short, scarcely forked. All are black or dark grey below in breeding-plumage.

This genus is widely distributed and comprises four species, of which two are Indian.

Key to the Species.

a. Bill from gape about 1.6; only crown and nape are black in summer……………………H. hybrida, p. 807.
b. Bill from gape 1.3; head, neck, and lower parts black in summer ……………………H. leucoptera, p. 308.

BookTitle: 
The Fauna Of British India, Including Ceylon And Burma-birds
Reference: 
Blanford, William Thomas, ed. The Fauna of British India: Including Ceylon and Burma. Vol. 4. 1898.
Title in Book: 
Genus HYDROCHELIDON
Book Author: 
William Thomas Blanford
Year: 
1898
Page No: 
307
M_ID: 
4669
M_SN: 
Chlidonias
Volume: 
Vol. 4
Term name: 
id: 
2159

Add new comment

CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.
Image CAPTCHA
Enter the characters shown in the image.
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith