Pernis ptilorhynchus

Pernis ptilorhynchus*.

Key to Subspecies.

A.Larger, wing 398 to 455 mm............... P.p. ptilorhynchus, p. 165.
B.Smaller, wing 388 to 416 mm............... P. p. ruficollis, p. 167.

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.5 1928.
Title in Book: 
Pernis ptilorhynchus
Book Author: 
Edward Charles Stuart Baker
Year: 
1928
Page No: 
165
M_ID: 
2588
M_CN: 
Crested Honey Buzzard
M_SN: 
Pernis ptilorhynchus
Volume: 
Vol. 5
id: 
4456

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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