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<p class=MsoNormal><span lang=EN-CA style='text-transform:uppercase'>Robertson,
G.J., Ryan, P.C., Dussureault, J., Turner, B.C., Wilhelm, S.I. &amp; Power,</span><span
lang=EN-CA> K. 2006. Composition of beached marine birds from an oiling event
in southeastern Newfoundland, November 2004. <i>Marine Ornithology</i></span><span
lang=EN-CA> 34:141-146.<span style='text-transform:uppercase'><o:p></o:p></span></span></p>

<p class=MsoNormal><span lang=EN-CA><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-CA>The waters off Newfoundland, Canada have
one of the worst chronic oiling problems in the world. Although the species
generally impacted by chronic oiling is known, details on the sex, age and
condition of birds killed are not well understood. In late November 2004, oiled
seabirds began arriving on the beaches of eastern Placentia Bay and over the
next week, 409 oiled marine birds were collected, with Thick-billed Murres <i>Uria
lomvia </i></span><span lang=EN-CA>(67%) and Dovekies <i>Alle alle </i></span><span
lang=EN-CA>(23%) comprising the majority. Adults comprised 80% (n = 253) of
Thick-billed Murres, 61% (n = 84) of Dovekies and only 38% (n = 16) of Common
Murres. Sex ratios were close to unity (48.2% male, n = 189) for Thick-billed
Murres but male-biased for Dovekies (60.5%, n =76) and Common Murres (85.7%, n
= 14). Most Dovekies and Thick-billed Murres were found dead (83%), with the
highest proportion found alive, 3 and 4 days, respectively, after the first
birds arrived. In spite of additional mass from the oil, body masses of
Thick-billed Murres were low (742 g, range 520-986 g; versus an expected 950 g
for wintering birds). This study confirms revious assumptions that chronic oil
pollution in Newfoundland impacts all ages of Thick-billed Murres equally, as
the age distributions found were similar to those expected in the population at
large. </span></p>

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<p class=MsoNormal><span lang=EN-CA>Key words: age, <i>Alle alle</i></span><span
lang=EN-CA>, Dovekie, Newfoundland, oil pollution, sex, Thick-billed Murre, <i>Uria
lomvia</i></span><span lang=EN-CA> </span></p>

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