First estimates of body mass change between the breeding and wintering stage in Atlantic Puffins.
By measuring body mass and wing length of adult Atlantic Puffins on their breeding grounds and in their wintering areas near the Faroe Islands, researchers have now estimated the seasonal changes in body mass for two populations breeding in Norwa
This article was first published at seapop.no.
For pelagic seabirds, which generally lay few eggs per year and invest more in adult survival