title: Skull deformity in a herring gull chick (Larus argentatus).
abstract: A skull deformity resulting in death of a herring gull chick (Larus argentatus) is described in detail. The bones of the skull and upper jaw were twisted, asymmetrical and of unusual size or absent. The lower jaw had an almost "spoon-like" external appearance and lacked normal articular surfaces.
authors.affiliation: Department of Biology, Memorial University of Newfoundland, St. John's, Canada.
authors.forename: W
authors.initials: W
authors.lastname: Threlfall
authors.forename: N A
authors.initials: NA
authors.lastname: Roy
mesh_terms: D000818:Animals; D001715:Bird Diseases / Q000151:congenital*; D001717:Birds; D012886:Skull / Q000002:abnormalities*