Pine Crossbills: a Scottish contribution.
Calton: Poyser, 1975. Octavo, photographs, a very good copy dustwrapper, scarce.
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Andrew Isles Natural History Books
![Handbook of the birds of the world [HBW], volume eight: broadbills to tapaculos. Josep del Hoyo.](https://andrewisles.cdn.bibliopolis.com/pictures/26576.jpg?width=320&height=427&fit=bounds&auto=webp&v=1780633995)
