Anker-Nilssen, T., Barrett, R.T., Bustnes, J.O., Erikstad, K.E., Fauchald, P., Lorentsen, S.-H., Steen, H., Strøm, H., Systad, G.H. & Tveraa, T. 2006. The SEAPOP programme – a milestone for the mapping and monitoring of seabirds in Norway. Seabird Group Newsletter 103: 11-12.