No evidence of extra-pair paternity in the Atlantic Puffin Fratercula arctica.

The article presents a study which examines the rate of extra-pair paternity (EPP) in the Atlantic Puffin Fratercula arctica. It mentions that researchers collected blood and tissues from 12 and 26 different family groups of Atlantic Puffins in late June and early July of 2003 and 2004. It cites that blood from chicks and adults was sampled by puncturing the bird's metatarsus vein with a sterile needle wherein the sample was transferred and dissolved in one milliliter of Queen's lysis buffer. The study reveals that molecular sexing confirmed that all 34 pairs where both adults were sampled consisted of one male and one female. Moreover, researchers determined that the chick being studied was also sired by its putative father.