Vol. 45, No. 3
Wayne R. Petersen
This issue’s mystery bird is a gull, a representative of a family about which some birders feel that all species are “mystery species.” While there is no question that the family Laridae is complex and often challenging where matters of field identification are concerned, larids also provide a spectrum of research opportunities in the fields of evolution, genetics, speciation, and taxonomy, as well as provide identification challenges to field birders.