Chris M. Perrins

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The migratory movements of seabirds (especially smaller species) remain poorly understood, despite their role as harvesters of marine ecosystems on a global scale and their potential as indicators of ocean health. Here we report a successful attempt, using miniature archival light loggers (geolocators), to elucidate the migratory behaviour of the Manx(More)
Navigational control of avian migration is understood, largely from the study of terrestrial birds, to depend on either genetically or culturally inherited information. By tracking the individual migrations of Atlantic Puffins, Fratercula arctica, in successive years using geolocators, we describe migratory behaviour in a pelagic seabird that is apparently(More)
Understanding the behaviour of animals in the wild is fundamental to conservation efforts. Advances in bio-logging technologies have offered insights into the behaviour of animals during foraging, migration and social interaction. However, broader application of these systems has been limited by device mass, cost and longevity. Here, we use information from(More)
We estimated leg-tucking by using activity and light data for each 10min interval. We assumed that there was no foraging or flight at night and that the dry periods observed were due to the birds tucking one leg under their wing while sleeping (Robertson et al., 2012; Linnebjerg et al., 2014). However, using data from 8 geolocators deployed simultaneously(More)
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