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Further notes on the natural history of the Ethiopian Bush-crow Zavattariornis stresemanni

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dc.contributor.authorBladon, Andrew J
dc.contributor.authorJones, Sam EI
dc.contributor.authorCollar, Nigel J
dc.contributor.authorDellelegn, Yilma
dc.contributor.authorDonald, Paul F
dc.contributor.authorGedeon, Kai
dc.contributor.authorGreen, Rhys E
dc.contributor.authorSpottiswoode, Claire N
dc.contributor.authorTöpfer, Till
dc.contributor.authorWondafrash, Mengistu
dc.contributor.orcidBladon, Andrew [0000-0002-2677-1247]
dc.contributor.orcidGreen, Rhys [0000-0001-8690-8914]
dc.contributor.orcidSpottiswoode, Claire [0000-0003-3232-9559]
dc.date.accessioned2015-12-18T17:13:04Z
dc.date.available2015-12-18T17:13:04Z
dc.date.issued2016-03-01
dc.description.abstractThe Ethiopian Bush-crow Zavattariornis stresemanni is a charismatic and Endangered endemic bird of southern Ethiopia, whose general biology remains under-studied. We present field notes and observations from 2008 to 2014, covering many aspects of the species’ behaviour and morphology. Bush-crows breed co-operatively in response to both of the local rainy seasons, but group size and fidelity of helpers appears to be variable. Bush-crow nests were found for the first time on man-made structures; a low power distribution pole and a tall electricity pylon. The display of one bush-crow to another is further described. Juveniles can be identified by darker coloration around the face, bright red gapes and distinctive begging calls. Adults possess lightweight, low-density body feathers and it appears that bush-crows have a moult phenology that overlaps extensively with breeding, a trait unusual in birds. Post-breeding dispersal is often limited, although anecdotal evidence and a handful of observations suggest that some individuals cover greater distances between breeding seasons. We report the first confirmed predation of a bush-crow, and supplement this with notes on other interspecific interactions. Finally, bush-crows were found for the first time north-west of Yabello (a small range extension), and we discuss the implications of local movements and range fluctuations in the context of the species’ apparent climatic range limitation.
dc.description.versionThis is the author accepted manuscript. The final version is available from African Bird Club via https://www.africanbirdclub.org/bulletins/abc-bulletin-231-march-2016/further-notes-natural-history-ethiopian-bush-crow
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/253053
dc.languageEnglish
dc.language.isoeng
dc.publisherBulletin of the African Bird Club 2015.
dc.titleFurther notes on the natural history of the Ethiopian Bush-crow Zavattariornis stresemanni
dc.typeArticle
prism.endingPage45
prism.publicationDate2016
prism.publicationNameBulletin of the African Bird Club
prism.startingPage27
prism.volume23
pubs.funder-project-idNERC (1210186)
rioxxterms.licenseref.startdate2016-03-01
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.typeJournal Article/Review

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