First evidence for carrion–feeding of Eurasian Eagle-owl (Bubo bubo) in Bulgaria

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Three cases of carrion-feeding with remains of artiodactyls (0.3%, n=1104 samples with food remains) have been documented in a long term diet study of Eurasian Eagle-owls (Bubo bubo) in 53 localities at Southeastern Bulgaria. Bone pieces of a sheep/goat (Ovis aries/Carpa hircus), a Fallow Deer (Dama dama) and a Domestic Pig (Sus scrofa dom.) in three Eurasian Eagle-owl breeding localities (5.7%) prove extremely rare feeding on carrion. Northern White-breasted Hedgehog (Erinaceus roumanicus), rats (Rattus sp.), waterbirds and gallinaceous birds (total 59.5-72.6% by biomass) constituted the main portion of the diets with carrion remains. The comparisons between food niche breadths, diet composition, average prey biomass and values of superpredation of the annual diets in the three localities have not supported the carrion-feeding of the Eurasian Eagle-owl as a result of food shortages.

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  • Allen M. & Taylor A. 2013. First record of scavenging by a Western Screech-owl (Megascops kennicottii). - Wilson Journal of Ornithology 125: 417-419. DOI: 10.1676/12-176.1

  • Bowen F. Carden R. Daujat J. Grouard S. Miller H. Perdikaris S. & Sykes N. 2016. Dama dentition: A new tooth eruption and wear method for assessing the age of Fallow Deer (Dama dama). - International Journal of Osteoarchaeology 26(6): 1089-1098. DOI: 10.1002/oa.2523

  • del Hoyo J. Elliott A. & Sargatal J. (eds.) 1999. Handbook of the Birds of the World. Vol. 5. Barn Owls to Hummingbirds. - Lynx Edicions Barcelona

  • DeVault T. Rhodes O. & Shivik J. 2003. Scavenging by vertebrates: behavioral ecological and evolutionary perspectives on an important energy transfer pathway in terrestrial ecosystems. - Oikos 102: 225-234. DOI: 10.1034/j.1600-0706.2003.12378.x

  • Díaz-Ruiz F. Buenestado F. Fernández-de-Simón J. & Ferreras P. 2010. First record of Rabbit carrion consumption by Eurasian Eagle-owl (Bubo bubo) on the Iberian Peninsula. - Journal Raptor Research 44: 78-79. DOI: 10.3356/JRR-09-21.1

  • Frey H. 1973. Zur Ökologie niederösterreichischer Uhupopulationen [On the ecology of Lower Austrian Eagle Owl population]. - Egretta 16: 1-68. (in German with English Summary)

  • Glutz von Blotzheim U. & Bauer K. 1994. Handbuch der Vögel Mitteleuropas [Handbook of the birds of Central Europe]. Bd. 9. - Akademische Verlagsgesellschaft Wiesbaden D. (in German)

  • Golemanski V. (ed.) 2015. Red Data Book of the Republic of Bulgaria. Vol. 2. Animals. IBEI. - BAS & MOEW. Sofia Bg.

  • Görner M. & Hackethal H. 1987. Säugetiere Europas [Mammals of Europe]. - Leipzig-Radebeul Neumann Verlag D. (in German)

  • Kapfer J. Gammon D. & Groves J. 2011. Carrion-feeding by Barred Owls (Strix varia). - Wilson Journal of Ornithology 123: 646-649. DOI: 10.1676/11-015.1

  • Levins R. 1968. Evolution in Changing Environments. - Princeton University Press Princeton NJ USA

  • Lourenço R. Santos S. Rabaça J. & Penteriani V. 2011. Superpredation patterns in four large European raptors. - Population Ecology 53: 175-185. DOI: 10.1007/s10144-010-0199-4

  • Lourenço R. Penteriani V. Rabaça J. & Korpimäki E. 2013. Lethal interactions among vertebrate top predators: a review of concepts assumptions and terminology. - Biological Review 89: 270-283. DOI: 10.1111/brv.12054

  • Mebs T. & Scherzinger W. 2008. Die Eulen Europas [Owls of Europe]. - Franckh-Kosmos Verlag Stuttgart D. (in German)

  • Mihelič T. 2002. Prehrana velike uharice Bubo bubo v jugozahodni Slovenij [Diet of Eagle Owl Bubo bubo in southwestern Slovenia]. - Acrocephalus 23: 81-86. (in Slovenian with English Summary)

  • Milchev B. 2016. Dietary comparison of coexisting Barn Owl (Tyto alba) and Eagle Owl (Bubo bubo) during consecutive breeding seasons. - Animal Biology 66: 219-228. DOI: 10.1163/15707563-00002499

  • Milchev B. & Georgiev V. 2012. Roach’s Mouse-tailed Dormouse Myomimus roachi distribution and conservation in Bulgaria. - Hystrix 23: 67-71. DOI: 10.4404/hystrix-23.2-4779

  • Milchev B. & Gruychev G. 2015. Why does the Eagle Owl Bubo bubo (L.) breed rarely in the Kazanlak Valley Central South Bulgaria? - Acta Zoologica Bulgarica 67: 67-74.

  • Milchev B. & Gruychev G. 2016. Successful breeding of a flightless female Eagle Owl Bubo bubo. - Avian Biological Research 9: 217-223. DOI: 10.3184/175815516X14725499175629

  • Moleón M. Sánchez-Zapata J. Selva N. Donázar J. & Owen-Smith N. 2014. Inter-specific interactions linkingpredation and scavenging in terrestrial vertebrate assemblages. - Biological Reviews 89: 1042-1054. DOI: 10.1111/brv.12097

  • Mori E. Menchetti M. & Dartora F. 2014. Evidence of carrion consumption behaviour in the Long-eared Owl Asio otus (Linnaeus 1758) (Aves: Strigiformes: Strigidae). - Italian Journal Zoology 81: 471-475. DOI: 10.1080/11250003.2014.920928

  • Nagy J. & Tökölyi J. 2014. Phylogeny historical biogeography and the evolution of migration in accipitrid birds of prey (Aves: Accipitriformes). - Ornis Hungarica 22: 15-35. DOI: 10.2478/orhu-2014-0008

  • Nagy J. Végvári Z. & Varga Z. 2017. Life history traits bioclimate and migratory systems of accipitrid birds of prey (Aves: Accipitriformes). - Biological Journal of the Linnean Society 121(1): 63-71. DOI: 10.1093/biolinnean/blw021

  • Papageorgiou N. Vlachos C. & Bakaloudis D. 1993. Diet and nest site characteristics of Eagle Owl (Bubo bubo) breeding in two different habitats in north-eastern Greece. - Avocetta 17: 49-54.

  • Penteriani V. Sergio F. Delgado M. Gallardo M. & Ferrer M. 2005. Biases in population diet studies due to sampling in heterogeneous environments: a case study with the Eagle Owl. - Journal of Field Ornithology 76: 237-244. DOI: 10.1648/0273-8570-76.3.237

  • Popov V. & Sedefchev A. 2003. Mammals in Bulgaria. - Geosoft Sofia Bg. (in Bulgarian)

  • Sándor A. & Ionescu D. 2009. Diet of the Eagle Owl (Bubo bubo) in Braşov Romania. - North-Western Journal of Zoology 5: 170-178.

  • Selva N. & Fortuna M. 2007. The nested structure of a scavenger community. - Proceedings of the Royal Society B Biological Sciences 274: 1101-1108. DOI: 10.1098/rspb.2006.0232

  • Selva N. Jędrzejewska B. Jędrzejewski W. & Wajrak A. 2005. Factors affecting carcass use by a guild of scavengers in European temperate woodland. - Canadian Journal of Zoology 83: 1590-1601. DOI: 10.1139/Z09-143

  • Serrano D. 2000. Use of Farm Chicken carcasses by the Eagle Owl Bubo bubo. - Ardeola 47: 101-103.

  • Simeonov S. Milchev B. & Boev Z. 1998. Study of the Eagle Owl (Bubo bubo (L.)) (Aves: Srigiformes) in the Strandzha mountain (Southeast Bulgaria). II. Food spectrum and trophic specialization. - Acta Zoologica Bulgarica 50: 87-100.

  • Welch S. 2012. A possible instance of a Barn Owl scavenging in severe weather. - Scottish Birds 32: 300-301.

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