. [Articles about birds from National geographic magazine]. Birds. .V t'IGt,Ui\ AND 1Tb W lllblXl:,: CIIIXA These whistles, very hght, weighing a few grams, are attached to the tails of young pigeons soon after their birth by means of line copper wire, so that when the birds fly the wind blowing through the whistles sets them vibi'ating, and this produces an open-air con- cert, for the instruments m the same flock are all different (see page 715). as those of }'ester(iay. And here we have the secret of youth in age which every venerable naturalist I have ever met has con^-incingly illustrated
. [Articles about birds from National geographic magazine]. Birds. .V t'IGt,Ui\ AND 1Tb W lllblXl:,: CIIIXA These whistles, very hght, weighing a few grams, are attached to the tails of young pigeons soon after their birth by means of line copper wire, so that when the birds fly the wind blowing through the whistles sets them vibi'ating, and this produces an open-air con- cert, for the instruments m the same flock are all different (see page 715). as those of }'ester(iay. And here we have the secret of youth in age which every venerable naturalist I have ever met has con^-incingly illustrated I could name ntarl}- a dozen, living and dead, whom it has been ni_\- \-alued privilege to know. All had passed the allotted three-score and ten, and some were over four-score. The friends and associates of their ear- lier da)'s had ])assed away, and one might imagine that they had no interest in life and were simph' waiting for the end But these veterans were old in years only. Their hearts were voung. The earth was fair ; plants still bloomed and birds sang for them. There was no idle waiting here ; the days were all too short. A\'ith what boyish ardor thev told of some recent discovery ; what inspiration there ^\:\.• in their ! So I say to a'ou, if }'ou would reap the imrcst pleasures of )-outh, manhood, and iihl age, go to the birds and through them be brought within the ennobling influences of Nature /14. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Washington, D. C. : National Geographic Society
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