John P. Ryder

Sex Ratio and Egg Sequence in Ring-Billed Gulls

John P. Ryder · The Auk · 1983 · 64 citations

Biology, Breeding Behavior, Reproductive Success +13

Female-Female Pairing in Ring-Billed Gulls

John P. Ryder, Patricia Lynn Somppi · The Auk · 1979 · 59 citations

Biology, Breeding Behavior, Reproductive Success +12

Trap for Capturing Shore and Seabirds

James A. Mills, John P. Ryder · Bird-Banding · 1979 · 48 citations

Avian Locomotion, Conservation Biology, Engineering +1

Size and Composition of Herring Gull Eggs: Relationship to Position in the Laying Sequence and the Body Condition of Females

Catherine E. Meathrel, John P. Ryder, Beatrice M. Termaat · Colonial Waterbirds · 1987 · 47 citations

Intraclutch Variation in the Size, Mass and Composition of Ring-Billed Gull Eggs

Catherine E. Meathrel, John P. Ryder · Ornithological Applications · 1987 · 42 citations

Breeding Behavior, Nutrition, Fitness +16