Black legged Kittiwake Rissa tridactyla diet

Since 1980, black-legged kittiwakes on Hornøya have been the subject of a variety of studies that have involved the capture of both adults and offspring during the chick-rearing period. Because both age groups often spontaneously regurgitate the contents of their proventriculus when handled, Food was sampled by collecting these regurgitations whenever the opportunity arose.