The difference between night and day: The nocturnal and diurnal activity budget of gray seals (Halichoerus grypus) during the breeding season

Habitat-Mediated Dive Behavior in Free-Ranging Grey Seals

(2013) Mark Jessopp et al.   PLoS One

Nocturnal Haul-Out Patterns of Harbor Seals (Phoca vitulina) Related to Airborne Noise Levels in Bellingham, Washington, USA

(2011) Alejandro Acevedo-Gutiérrez   AQUATIC MAMMALS

THE BREEDING COLONY OF GREY SEALS ON NORTH RONA, 1959

(2010) J. MORTON BOYD et al.   PROCEEDINGS OF THE ZOOLOGICAL SOCIETY OF LONDON

Individually Consistent Behavioural Patterns in Wild, Breeding Male Grey Seals (Halichoerus grypus)

(2010) Sean D. Twiss et al.   AQUATIC MAMMALS

Mother-young behaviour at Grey seal breeding beaches

(2009) S. C. L. Fogden   JOURNAL OF ZOOLOGY

Using mobile phone telemetry to investigate the haul-out behaviour of harbour seals Phoca vitulina vitulina

(2009) MA Cronin et al.   Endangered Species Research

The Influence of Social Composition on Reproductive Behavior of Territorial Male California Sea Lions

(2008) Julie K. Young et al.   AQUATIC MAMMALS