Breeding colony of closely related living together,one would normally expect the number of extramarital matings very high Is. In Practice this is not detected by the Alle allre.
One would suspect that birds breeding and living in a colony, males or females would go strange , but in this study prove that it really does not take place.
The study on several chicks, we found only two young that were the result of an illegitimate mating, indeed, these study show us that this species that has only one egg to breed in a season also that there are very loyal yo her partner, committing adultery with the species are sometimes the consequences of failure of the male that not return to the breeding side.
Also several males are Infertile , and that these effects than the female . Several breeding birds were also tested for possible lead poisoning,here were some heavily infected females found,these effects on their eggs was very clear ant the outcome was that eggs were not fertilized , low in scale and contained 4% led .
This study will also be done on AUKS In the coming years, to see how much poison can be found in there food, that consists of small fish and other small sea Creatures.