Rare Birds of Britain and Ireland
Dymond, J.N., P.A. Fraser, and S.J.M. Gantlett
The Birds of the Strait of Gibraltar: Its Waters and Northern Shore
Finlayson, James Clive & John Emmanuel Cortes
The Ibis, Volume II, 1908. Jubilee Supplement
Sclater, Philip Lutley and A.H. Evans, Editors.
Birdwatching in Britain: A Site by Site Guide
Redman, Nigel and Simon Harrap.
Moult and Ageing of European Passerine, Second Edition
Jenni, Lukas and Raffael Winkler
The British Birds of the British Isles and Their Eggs Series I: First Edition
The Birds of the British Isles and Their Eggs Series I-III
Birds of Britain
Bonhote, J. Lewis
The Birds of the Pentland Hills
Birds of the Outer Hebrides: A Guide to Their Status and Distribution
Birds of Islay
Elliott, Richard E.