Black Guillemot (Cepphus grylle) Science Article 4
During 1995-1997 a large number of black guillemots from an area near the southern part of Streymoy and Hestoy were sacrificed in connection with a large study of the birds’ diet and of pollutants load in the Faroe Islands. In recent years also black guillemot eggs havebeen sampled for the purpose of environmental monitoring. The eggs have been gathered on Skuvoy and Koltur and have been analysed for pollutants such as mercury as well as for stable isotopes of nitrogen and carbon.
Maria Dam, Katrin Hoydal and Jens-Kjeld Jensen, Frooskaparrit 52. bok 2004: 73-84