1-9 of 9 Books
The ring-billed gull in Ontario
The ring-billed gull in Ontario
By H. Blokpoel
Breeding biology of California and ringbilled gulls
Breeding biology of California and ringbilled gulls
By Kees Vermeer

American white pelican, California gull, caspian tern, double-crested cormorant, great blue heron and ring-billed gull colony surveys
By Alberta. Alberta Environment
Analysis of factors eliciting and orienting parental protective behaviors in the ring-billed gull
Analysis of factors eliciting and orienting parental protective behaviors in the ring-billed gull
By Michael Robert Conover
Breeding biology of California and ring-billed gulls: a study of ecological adaptation to the inland habitat/ by Kees Vermeer
Breeding biology of California and ring-billed gulls: a study of ecological adaptation to the inland habitat/ by Kees Vermeer
By Environment Canada. Canadian Wildlife Service.
The effects of social and environmental factors on the agonistic behavior and reproductive success of the Ring-billed Gull
The effects of social and environmental factors on the agonistic behavior and reproductive success of the Ring-billed Gull
By Stanley Wayne Cooper
Etude des problèmes de dégradation bactériologique des eaux de sept plages publiques du Québec au cours de l'été 1988
Etude des problèmes de dégradation bactériologique des eaux de sept plages publiques du Québec au cours de l'été 1988
By Jacques Michaud
Effects of nest habitat, behavior, and volcanic ash on reproductive success in ring-billed and California gulls
Effects of nest habitat, behavior, and volcanic ash on reproductive success in ring-billed and California gulls
By James L. Hayward

A study of two species of gulls, Larus Californicus and L. Delawarensis, breeding in an inland habitat
By Kees Vermeer