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    <marc:controlfield tag="003">CaOODSP</marc:controlfield>
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    <marc:controlfield tag="007">cr |||||||||||</marc:controlfield>
    <marc:controlfield tag="008">180605s1993    oncd    o    f00| 0 eng d</marc:controlfield>
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      <marc:subfield code="b">eng</marc:subfield>
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      <marc:subfield code="a">n-cn---</marc:subfield>
      <marc:subfield code="a">r------</marc:subfield>
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      <marc:subfield code="a">CW69-5/180E-PDF</marc:subfield>
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      <marc:subfield code="a">Bradstreet, Michael S. W.</marc:subfield>
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    <marc:datafield tag="245" ind1="1" ind2="4">
      <marc:subfield code="a">The diet of thick-billed murres, Uria lomvia, in the eastern Canadian Arctic during the breeding season </marc:subfield>
      <marc:subfield code="h">[electronic resource] / </marc:subfield>
      <marc:subfield code="c">M.S.W. Bradstreet and A.J. Gaston.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="260" ind1=" " ind2=" ">
      <marc:subfield code="a">Ottawa : </marc:subfield>
      <marc:subfield code="b">Canadian Wildlife Service, Headquarters, </marc:subfield>
      <marc:subfield code="c">1993.</marc:subfield>
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      <marc:subfield code="a">27 p. : </marc:subfield>
      <marc:subfield code="b">charts.</marc:subfield>
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    <marc:datafield tag="490" ind1="1" ind2=" ">
      <marc:subfield code="a">Technical report series ; </marc:subfield>
      <marc:subfield code="v">no. 180</marc:subfield>
    </marc:datafield>
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      <marc:subfield code="a">Digitized edition from print [produced by Environment and Climate Change Canada].</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (p. 11).</marc:subfield>
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      <marc:subfield code="a">"The diet of Thick-billed Murres collected near six colonies in the eastern Canadian Arctic comprised invertebrates (84% of 23,462 items) and fish (16%). No differences in diet were found between the sexes, or between adults and sub-adults. Differences at individual colonies between stages of the breeding season and between years were generally small"--Abstract.</marc:subfield>
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      <marc:subfield code="2">gccst</marc:subfield>
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    <marc:datafield tag="693" ind1=" " ind2="4">
      <marc:subfield code="a">Thick-billed murres</marc:subfield>
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      <marc:subfield code="a">Gaston, A. J.</marc:subfield>
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      <marc:subfield code="a">Canada. </marc:subfield>
      <marc:subfield code="b">Environment Canada.</marc:subfield>
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      <marc:subfield code="a">Canadian Wildlife Service. </marc:subfield>
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      <marc:subfield code="a">Technical report series (Canadian Wildlife Service)</marc:subfield>
      <marc:subfield code="v">no. 180.</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.504438</marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">2.04 MB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2018/eccc/cw69-5/CW69-5-180-eng.pdf</marc:subfield>
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