The Helm Guide to Bird Identification. An in-depth look at confusion species.

Vinicombe, K et al.

Editore: 1st. Ed. Pub. Helm. 2014

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pp.396 with over 1,250 illustrations in colour. New softback. Covers tough species identification issues by looking at tricky pairs or groups of birds, and comparing and contrasting their respective features. Designed as a companion to regular field guides, providing much additional information. As well as detailed text, the guide includes a large number of drawings for each species, showing variation in plumage and changes in appearance as birds age. Codice articolo 47941

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Titolo: The Helm Guide to Bird Identification. An ...

Casa editrice: 1st. Ed. Pub. Helm. 2014