. The Canadian field-naturalist. 1982 Gaston: Migration of Juvenile Murres 31 Table 1. Transects and distances flown and numbers of Thick-billed Murres recorded within 200 m of the line of flight, during 5 surveys in September 1980. Murres Observed Date Transects Distance Unaccompanied Adult-chick De isity of Adult Flown Adults pairs ch ck pairs/km^ 362 336 36 0.25 538 718 319 1.48 115 8 0 0 363 188 60 0.41 339 0 0 0 766 34 16 0.05 139 12 5 0.09 632 236 123 0.49 255 4 0 0 603 81 43 0.18 3 Sept. coastal 1,4,6,7,22 offshore 2,3,5,23,24 4 Sept. coastal 11 offshore 25,27,28 9 Sept. coastal 8,9,10,

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. The Canadian field-naturalist. 1982 Gaston: Migration of Juvenile Murres 31 Table 1. Transects and distances flown and numbers of Thick-billed Murres recorded within 200 m of the line of flight, during 5 surveys in September 1980. Murres Observed Date Transects Distance Unaccompanied Adult-chick De isity of Adult Flown Adults pairs ch ck pairs/km^ 362 336 36 0.25 538 718 319 1.48 115 8 0 0 363 188 60 0.41 339 0 0 0 766 34 16 0.05 139 12 5 0.09 632 236 123 0.49 255 4 0 0 603 81 43 0.18 3 Sept. coastal 1,4,6,7,22 offshore 2,3,5,23,24 4 Sept. coastal 11 offshore 25,27,28 9 Sept. coastal 8,9,10,

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