Distinctive egg color variations in Common Murres

By T. R. Birkhead Linked paper: Exceptional variation in the appearance of Common Murre eggs reveals their potential as identity signals by Tim R. Birkhead; Jamie E. Thompson; Amelia R. Cox; Robert D. Montgomerie. Ornithology. Few birds lay such spectacular eggs as the Common Murre (Uria aalge; Common Guillemot in Europe). Almost every book on …