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Variation of Birds in a State of Nature by Frank Russell, 1892

Variation of Birds in a State of Nature by Frank Russell, 1892, Page 20

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18 so uniformly distributed [are?] the lighter parts. Other species show the same tendency e.g. the [illegible] head of the Snow goose but the [breasts?] of the other water birds that would come in contact with the same plants show no such coloration. We therefore conclude that it is due to [atavism?] or to [inherent?] selection causes and not to accidental contact. Of the skins studied 33.4% were females 35.2% males and 31.4% unidentified. 322 have their length recorded in the [field?] notes of collector and are arranged in order of lengths in the second series. [Table] no.of skins % of 500 length of bird 3 .93* 21 inches 1 .21* 22 " 2 .62* 23 " 6 1.86* 24 " 3 .31 25 " 20 6.21 26 " 26 8. 27 " 48 15. 28 " 52 16.1 30 " 52 16.1 31 " 32 10. 32 " 16 5. 33 " 22 7. 34 " 12 3.7 35 " 9 2.8 36 " 2 .62 37 " 3 .93 38 " 4 1.2 39 " 3 .93 40 " 2 .62 42 " 361 or 72.2% of the 500 have the cheek patch [undivided?]. 129 or 27.8% have a [divided?] cheek patch that of [no?]. 99 bring almost entirely black! Between this extreme and the white and [unmottled?] cheek patch
 
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