Printed

• Birds:  An Identification Guide to the Birds of Britain and Ireland by Rob Hume Andy Swash, Hugh Harrop and David Tipling (Princeton University Press, 2016) 
• Collins Bird Guide by Lars Svensson and Killian Mullarney (Collins; 2^nd  edition 2010) 
• Owls & owl pellets (FSC Fold-out chart) 
• The Crossley ID Guide Britain & Ireland by Richard Crossley & Dominic Couzens (Princeton University Press, 2014) 
• Top 50 garden birds (FSC Fold-out chart) 
• Wetland Birds (FSC Fold-out chart) 

Websites

• The Crossley ID Guide Britain & Ireland by Richard Crossley & Dominic Couzens (Princeton University Press, 2014) 
• Top 50 garden birds (FSC Fold-out chart) 
• Wetland Birds (FSC Fold-out chart) 

Apps

• The Crossley ID Guide Britain & Ireland by Richard Crossley & Dominic Couzens (Princeton University Press, 2014) 
• Top 50 garden birds (FSC Fold-out chart) 
• Wetland Birds (FSC Fold-out chart) 

• Animal Tracks and Signs by Preben Bang & Preben Dahlstrøm (OUP Oxford 2006) 
• Bats by Dean Waters & Ruth Warren (Mammal Society 2009)
• Collins Complete British Animals by Paul Sterry (Collins  2010)
• Mammals of the British Isles; Handbook by S. Harris & D.W. Yalden (Mammal Society 4th edition, 2008)

Key to the Identification of British Centipedes by A D Barber (FSC Aidgap, 2008)