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Counting birds the problem of variable hearing abilities



Counting birds the problem of variable hearing abilities



Journal of Field Ornithology 63(1): 26-31



Bird counters are confronted with a conflict between their responsibility to the public for reliable information on avian population trends and a recognition of wide, age-related, differences in hearing and song detection abilities among themselves. In this paper the personal audiograms of birds counters are superimposed on the frequency-amplitude spectrograms of birds species and the indicated relationship is considered as a basis for developing correction factors that could compensate for variable hearing abilities. Some such procedure could permit the many hearing-impaired but enthusiastic older bird counters to continue in this personally rewarding and scientifically important activity.

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Accession: 007165963

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