• Crespin, L., Harris, M.P., Lebreton, J-D, & Wanless, S. (2006) "Increased adult mortality and reduced breeding success with age in a population of Common Guillemot Uria aalge using marked birds of unknown age" J. Avian Biol. 37(3):273-282
    [notes]
    http://dx.doi.org/10.1111/j.0908-8857.2006.03495.x


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