This article was published in the Animal Behyaviour journal in January 2017.
It deals with the study of inter-individual bonds in colonial spedies, here the Slender-Billed Gull in the Camargue, Southern France.
You can access it in open access on the publisher’s website, as well as its abstract, through the opposite link.
Photo: Slender-Billed Gulls colony in the Camargue, Southern France (© C. Francesiaz)