William Yarrell's A History of British Birds was first published as a whole in three volumes in 1843, having been serialized, three sheets (=48 pages) every two months, over the previous six years. It is not a history of ornithology but a natural history, a handbook or field guide systematically describing every species of bird known to occur in Britain. A separate article of about six pages, containing an image, a description, and an account of worldwide distribution, together with reports of behaviour, is provided for each species.