The ringer’s bible! Revised and updated, now including 229 species and valid subspecies. Some rare vagrants added. With species names in English, Finnish, French, German and Swedish. Data includes wing formulae, measurements, plumage and other criteria for determining sex and age. Introduction with basic moult facts, numbering feathers etc.
Format: Paperback
Author: Lars Svensson
Pages: 368
Dimensions: 130x185x20mm
Weight: 517 g
Publication: 4th ed. published 1992
Revised 2005, 2006, 2009, 2011, 2014, 2016
Publisher: BTO
Language: English