The visual fields of Common Guillemots Uria aalge and Atlantic Puffins Fratercula arctica: foraging, vigilance and collision vulnerability

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Ibis, Vol. 157, Iss. 4, 2015-10 ,pp. : 798-807

John Wiley & Sons Inc

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Sex-specific differences in diving behaviour of two sympatric Alcini species: thick-billed murres and razorbills

By Paredes Rosana   Jones Ian L.   Boness Daryl J.   Tremblay Yann   Renner Martin  

Canadian Journal of Zoology, Vol. 86, Iss. 7, 2008-07 ,pp. : 610-622

NRC Research Press

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The influence of buoyancy and drag on the dive behaviour of an Arctic seabird, the Thick-billed Murre

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Dramatic changes in the return date of Guillemots Uria aalge to colonies in Shetland, 1962–2005: Capsule Changes in return date coincided with marked changes in population size that probably resulted in fluctuating competition for nest-sites.

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Extremely late laying by Guillemots Uria aalge can be successful: Capsule Even though most other pairs in the colony had finished breeding, late breeders that lost eggs and relaid were successful in rearing young.

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