| Literature DB >> 27678397 |
Henry E Heffner1, Gimseong Koay2, Rickye S Heffner2.
Abstract
The pure-tone thresholds of three budgerigars were determined from 8 Hz to 10 kHz. At a level of 60 dB sound pressure level (re 20 μN/m2), their hearing range extends 6.6 octaves from 77 Hz to 7.6 kHz, with a best sensitivity of 1.1 dB at 3 kHz. Unlike pigeons and chickens, budgerigars do not have better low-frequency hearing than humans. This difference implies anatomical, physiological, and ecological differences between birds that hear infrasound (so far, pigeons and chickens) and those that do not (budgerigars).Entities:
Keywords: Audiogram; Chicken; Infrasound; Parakeet; Pigeon
Mesh:
Year: 2016 PMID: 27678397 DOI: 10.1007/s00359-016-1125-9
Source DB: PubMed Journal: J Comp Physiol A Neuroethol Sens Neural Behav Physiol ISSN: 0340-7594 Impact factor: 1.836