Motacilla feldegg.

Key to Subspecies.

A. Crown black. Aestiv.
B. Crown black, the feathers fringed with green. Hiem.
a.Chin yellow, malar stripe absent or, if present, tinged with yellow…………M. f. feldegg, p. 271.
b. Chin and moustachial stripe pure white and distinct…………M. f. melanogriseus, [p. 272.

In their non-breeding haunts these two races overlap very greatly and it is quite useless comparing series of intermediate birds obtained in these places in Winter and trying to draw any deductions from such comparison. Breeding birds show the differences between the two races sufficiently well to justify their retention. Young birds certainly cannot be differentiated and young birds are those which travel furthest and are found most often beyond their usual migration routes and winter haunts.

BookTitle: 
The Fauna Of British India, Including Ceylon And Burma-birds(second Edition)
Reference: 
Baker, EC S (1922–1930) The fauna of British India including Ceylon and Burma. Second edition. vol.3 1926.
Title in Book: 
Motacilla feldegg.
Book Author: 
Edward Charles Stuart Baker
Year: 
1926
Page No: 
271
M_ID: 
30306
M_SN: 
Motacilla flava feldegg
Volume: 
Vol. 3
Term name: 
id: 
4027

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Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith