Flight Identification of European Passerines and Select Landbirds
Cofta, Tomasz, Photographs by Michal Skakuj
The Birds of the Balearics
Bannerman, David A. and W. Mary Bannerman
The Natural History of Cape Clear Island
Sharrock, J.T.R., editor
Britain's Birds: An Identification Guide to the Birds of Britain and Ireland, Second edition
Hume, Rob; et al
Sea and Shore Birds of the Isles of Scilly
Hunt, David
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.
Swallows
Tate, Peter
Moult and Ageing of European Passerines, Second Edition
Jenni, Lukas and Raffael Winkler
The British Birds of the British Isles and Their Eggs Series I: First Edition
T.A. Coward
