The oilbird: hearing and echolocation.

M Konishi; E I Knudsen

doi:10.1126/science.441731

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PubMed · 441731

The oilbird: hearing and echolocation.

M Konishi·E I Knudsen

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Abstract

Oilbirds can navigate in total darkness by echolocation. The sound energy in their sonar cries is unevenly distributed over the range from about 1 to 15 kilohertz, with a dominant frequency range of 1.5 to 2.5 kilohertz. This corresponds to the most sensitive range of their hearing as determined by neurophysiological methods. Behavioral tests in their home cave indicate that the smallest object avoided by this is a disk 20 centimeters in diameter.

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Animals Birds Echolocation Orientation Vocalization, Animal Journal Article

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M Konishi, E I Knudsen. 1979-04-27. The oilbird: hearing and echolocation.. https://doi.org/10.1126/science.441731

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