Genus ESACUS

This genus is distinguished from Oedicnemus by its very large and massive compressed bill, much longer than the head, and measuring from the gape nearly twice the length of the middle toe without claw. In other respects the two genera are similar, but whilst Oedicnemus is a bird of dry open stony country, Esacus haunts the margins of rivers and the sea.

Only two species are known, both found within our area. By many ornithologists they are placed in distinct genera, on account of the shape of the bill differing; but as there is no other distinction, I agree with Hume (S. F. v, p. 121) in regarding generic separa¬tion as unnecessary.

Key to the Species.

a. Culmen almost straight; 6th primary brown, basal portion of inner web white…………………………E. recurvirostris, p. 205.

b. Culmen curved, convex ; 6th primary white, except a brown spot on outer web near tip …………………………E. magnirostris, p. 207.

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 ESACUS
Book Author: 
William Thomas Blanford
Year: 
1898
Page No: 
205
M_ID: 
3927
M_SN: 
Esacus
Volume: 
Vol. 4
Term name: 
id: 
2034

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