A Caltech Library Service

Hearing and Echolocation in the Australian Grey Swiftlet, Collocalia Spodiopygia

Coles, Roger B. and Konishi, Masukazu and Pettigrew, John D. (1987) Hearing and Echolocation in the Australian Grey Swiftlet, Collocalia Spodiopygia. Journal of Experimental Biology, 129 . pp. 365-371. ISSN 0022-0949.

PDF - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


The frequency sensitivity of hearing in the grey swiftlet, Collocalia spodiopygia, was determined by neuronal recordings from the auditory midbrain (MLD). The most sensitive best frequency response thresholds occurred between 0.8 and 4.7 kHz, with the upper frequency limit near 6 kHz. Spectral analysis of echolocation click pairs revealed energy peaks between 3.0 and 8.0kHz for the foreclick, compared to 4.0-6.0 kHz for the principal click. The relationship between good hearing sensitivity and click energy peaks in the swiftlet extends about an octave higher than it does in the oilbird (Steatornis caripensis).

Item Type:Article
Related URLs:
URLURL TypeDescription
Additional Information:© 1987 by Company of Biologists. Accepted 3 February 1987. This work was completed as part of the 1980 Biosonar Expedition to Chillagoe, Australia. We gratefully acknowledge funding by the NSF (grant no. BNS-79-13968), the assistance of members of the Chillagoe Caving Club, Queensland National Parks and Wildlife Service, and many other individuals whose help was indispensable to the success of the expedition.
Funding AgencyGrant Number
Subject Keywords:swiftlet, hearing, echolocation click, midbrain
Record Number:CaltechAUTHORS:20120626-084752602
Persistent URL:
Official Citation: ROGER B. COLES, MASAKAZU KONISHI and JOHN D. PETTIGREW Hearing and Echolocation in the Australian Grey Swiftlet, Collocalia Spodiopygia J Exp Biol 1987 129:365-371.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:32078
Deposited By: Ruth Sustaita
Deposited On:26 Jun 2012 16:32
Last Modified:03 Oct 2019 03:57

Repository Staff Only: item control page