DICKINSON, E. C., OVERSTREET, L. K., DOWSETT, R. J. and BRUCE, M. D. (compilers and editors). Priority! The dating of scientific names in ornithology: a directory to the literature and its reviewers. Aves Press, Northampton: 2011. Pp 320 (+ CD). Price £ 80.00. ISBN 9780956861115.