Some vocalisations of the Grey Falcon 'Falco hypoleucos'
Sound-recordings of some calls of the Grey Falcon 'Falco hypoleucos' (adult cackle calls, juvenile begging whines) are described and presented as sound spectrograms, and compared with some equivalent calls of the Peregrine Falcon 'F. peregrinus' (adult female cackle, juvenile beg...
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Australian Bird Study Association Inc
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ftunivnewengland:oai:rune.une.edu.au:1959.11/19788 2023-08-27T04:11:28+02:00 Some vocalisations of the Grey Falcon 'Falco hypoleucos' Baylis, T van Gessel, F W Debus, Steve J S School of Environmental and Rural Science 2015 https://hdl.handle.net/1959.11/19788 https://rune.une.edu.au/web/retrieve/160d5285-6720-4ec1-a5b2-c6e9732e5a12 en eng Australian Bird Study Association Inc https://hdl.handle.net/1959.11/19788 https://rune.une.edu.au/web/retrieve/160d5285-6720-4ec1-a5b2-c6e9732e5a12 une:19979 UNE Green http://www.absa.asn.au/publication-category/corella/ Animal Behaviour Animal Developmental and Reproductive Biology Journal Article 2015 ftunivnewengland 2023-08-10T18:57:48Z Sound-recordings of some calls of the Grey Falcon 'Falco hypoleucos' (adult cackle calls, juvenile begging whines) are described and presented as sound spectrograms, and compared with some equivalent calls of the Peregrine Falcon 'F. peregrinus' (adult female cackle, juvenile begging whine, probable juvenile cackle). The Grey Falcon cackle calls are similar to those of the Peregrine, though variously softer and clearer, more 'squeaky' and/or more guttural (the Peregrine cackles being more strident and whining). Grey Falcon juvenile begging calls are more falsetto than those of the Peregrine. Fundamental frequencies differ slightly (Grey Falcon adult female cackle calls at ~700 Hz, Peregrine at ~1 kHz for juvenile begging calls, ~2 kHz for adult female cackle calls). The vocal data are consistent with the phylogenetic position of the Grey Falcon as basal to the Peregrine and 'great falcon' groups. Article in Journal/Newspaper peregrine falcon Research UNE - University of New England at Armidale, NSW Australia |
institution |
Open Polar |
collection |
Research UNE - University of New England at Armidale, NSW Australia |
op_collection_id |
ftunivnewengland |
language |
English |
topic |
Animal Behaviour Animal Developmental and Reproductive Biology |
spellingShingle |
Animal Behaviour Animal Developmental and Reproductive Biology Baylis, T van Gessel, F W Debus, Steve J S School of Environmental and Rural Science Some vocalisations of the Grey Falcon 'Falco hypoleucos' |
topic_facet |
Animal Behaviour Animal Developmental and Reproductive Biology |
description |
Sound-recordings of some calls of the Grey Falcon 'Falco hypoleucos' (adult cackle calls, juvenile begging whines) are described and presented as sound spectrograms, and compared with some equivalent calls of the Peregrine Falcon 'F. peregrinus' (adult female cackle, juvenile begging whine, probable juvenile cackle). The Grey Falcon cackle calls are similar to those of the Peregrine, though variously softer and clearer, more 'squeaky' and/or more guttural (the Peregrine cackles being more strident and whining). Grey Falcon juvenile begging calls are more falsetto than those of the Peregrine. Fundamental frequencies differ slightly (Grey Falcon adult female cackle calls at ~700 Hz, Peregrine at ~1 kHz for juvenile begging calls, ~2 kHz for adult female cackle calls). The vocal data are consistent with the phylogenetic position of the Grey Falcon as basal to the Peregrine and 'great falcon' groups. |
format |
Article in Journal/Newspaper |
author |
Baylis, T van Gessel, F W Debus, Steve J S School of Environmental and Rural Science |
author_facet |
Baylis, T van Gessel, F W Debus, Steve J S School of Environmental and Rural Science |
author_sort |
Baylis, T |
title |
Some vocalisations of the Grey Falcon 'Falco hypoleucos' |
title_short |
Some vocalisations of the Grey Falcon 'Falco hypoleucos' |
title_full |
Some vocalisations of the Grey Falcon 'Falco hypoleucos' |
title_fullStr |
Some vocalisations of the Grey Falcon 'Falco hypoleucos' |
title_full_unstemmed |
Some vocalisations of the Grey Falcon 'Falco hypoleucos' |
title_sort |
some vocalisations of the grey falcon 'falco hypoleucos' |
publisher |
Australian Bird Study Association Inc |
publishDate |
2015 |
url |
https://hdl.handle.net/1959.11/19788 https://rune.une.edu.au/web/retrieve/160d5285-6720-4ec1-a5b2-c6e9732e5a12 |
genre |
peregrine falcon |
genre_facet |
peregrine falcon |
op_source |
http://www.absa.asn.au/publication-category/corella/ |
op_relation |
https://hdl.handle.net/1959.11/19788 https://rune.une.edu.au/web/retrieve/160d5285-6720-4ec1-a5b2-c6e9732e5a12 une:19979 |
op_rights |
UNE Green |
_version_ |
1775354261251555328 |