Tracks and Signs of the Birds of Britain and Europe
Autor
Michael Lawrence (University Of Sussex, Uk)
, David Lees
, John Ferguson
, Roy Brown
Featuring updated data for this second edition, this is a field guide to the tracks and signs of European birds. It covers tracks, trails, nests, roosts, feeding and behavioural signs, pellets, droppings, and feathers and skulls, with illustrations showing the signs as they appear in the field.