[
Alarcon, P. A. E. & Lambertucci, S. A. 2018. A three-decade review of telemetry studies on vultures and condors. – Movement Ecology 6: 13. DOI: 10.1186/s40462-018-0133-5.10.1186/s40462-018-0133-5612277730202527
]Search in Google Scholar
[
Allen, A. M. & Singh, N. J. 2016. Linking movement ecology with wildlife management and conservation. – Frontiers in Ecology and Evolution 3: 155. DOI: 10.3389/fevo.2015.00155.10.3389/fevo.2015.00155
]Search in Google Scholar
[
Amstrup, S. C., McDonald, T. L. & Durner, G. M. 2004. Using satellite radiotelemetry data to delineate and manage wildlife populations. – Wildlife Society Bulletin 32(3): 661–679. DOI: 10.2193/0091-7648(2004)032[0661:US RDTD]2.0.CO;2
]Search in Google Scholar
[
Anderson, D., Arkumarev, V., Bildstein, K., Botha, A., Bowden, C. G. R., Davies, M., Duriez, O., Forbes, N. A., Godino, A., Green, R. E., Krüger, S., Lambertucci, S. A., Orr-Ewing, D., Parish, C. N., Parry-Jones, J. & Weston, E. 2020. A practical guide to methods for attaching research devices to vultures and condors. – Vulture News 78a: 1–72.
]Search in Google Scholar
[
Andevski, J. (ed.) 2013. Vulture conservation in the Balkan Peninsula and adjacent regions. 10 years of vulture research and conservation. – Action plan for the recovery and conservation of vultures on the Balkan Peninsula and adjacent regions. Vulture Conservation Foundation & Frankfurt Zoological Society, Skopje, North Macedonia
]Search in Google Scholar
[
Arkumarev, V., Dobrev, D. & Stamenov, A. 2019. First record of Eurasian Griffon Vulture (Gyps fulvus) from the Balkans migrating to South Sudan revealed by GPS tracking. – Scopus 39(2): 27–35.
]Search in Google Scholar
[
Arkumarev, V., Dobrev, D., Stamenov, A., Angelova, V., Delchev, A., Dyulgerska, V., Zakkak, S., Kapsalis, E. & Stoychev, S. 2020. Occurences of the Cinereous Vulture (Aegypius monachus) in the Eastern Rhodopes, Bulgaria. – Ecologia Balkanica 12(2): 55–63.
]Search in Google Scholar
[
Arkumarev, V., Dobrev, D., Stamenov, A., Terziev, N., Delchev, A. & Stoychev, S. 2021a Seasonal dynamics in the exploitation of natural carcasses and supplementary feeding stations by a top avian scavenger. – Journal of Ortnithology 162: 723–735. DOI: 10.1007/s10336-021-01865-1.10.1007/s10336-021-01865-1
]Search in Google Scholar
[
Arkumarev, V., Dobrev, D., Stamenov, A., Terziev, N., Delchev, A. & Stoychev, S. 2021b Using GPS and accelerometry data to study the diet of a top avian scavenger. – Bird Study 67(3): 300–310. DOI: 10.1080/00063657.2020.1864285.10.1080/00063657.2020.1864285
]Search in Google Scholar
[
Azmanis, P. N. 2009. Regulations of transmissible spongiform encephalopathies (TSEs) and management of feeding sites for birds of prey: a comparative approach between Western Europe (Iberian Peninsula and France) and the Balkan Peninsula. – In: Donazar, J. A., Margalida, A. & Campion, D. (eds.) Buitres, muladares y legislation sanitaria: perspectives de un conflicto y sus consecuencias desde la biologia de la conservation. – Aranzadi, Donostia, Spain, pp. 521–525.
]Search in Google Scholar
[
Bahat, O., Hatzofe, O., Kaplan, A. & Woodley, B. 2001. Foraging range and movements of Griffon Vulture (Gyps fulvus) in Israel, as determined by satellite tracking. – In: Proceedings of the 4th Eurasian Congress on Raptors. – IV. Eurasian Congress on Raptors, Seville, Spain, Donana Biological Station & Raptor Research Foundation, Seville, pp. 11–12.
]Search in Google Scholar
[
Bahat, O. & Kaplan, A. 1995. Foraging behaviour in Griffon Vultures. – Torgos 25: 18–26.
]Search in Google Scholar
[
BirdLife International 2021. Species factsheet: Gyps fulvus. Downloaded from http://www.birdlife.org on 13/09/2021.
]Search in Google Scholar
[
Bodey, T. W., Cleasby, I. R., Bell, F., Parr, N., Schultz, A., Votier, S. C. & Bearhop, S. 2018. A phylogenetically controlled meta-analysis of biologging device effects on birds: deleterious effects and a call for more standardized reporting of study data. – Methods in Ecology and Evolution 9(4): 946–955. DOI: 10.1111/2041-210X.12934.10.1111/2041-210X.12934
]Search in Google Scholar
[
Botha, A. J., Andevski, J., Bowden, C. G. R., Gudka, M., Safford, R. J., Tavares, J. & Williams, N. P. 2017. CMS Multi-species Action Plan to conserve African-Eurasian Vultures. – Abu Dhabi, United Arab Emirates: Coordinating Unit of the CMS Raptors MOU. CMS Raptors MOU Technical Publication No. 5. CMS Technical Series No. 35.
]Search in Google Scholar
[
Carcamo, B., Kret, E., Zografou, C. & Vasilakis, D. 2011. Assessing the impacts of 9 wind farms on the birds of prey of Thrace. – Technical report of WWF-Greece. http://www.wwf.gr/images/pdfs/WWF-aiolika-arpaktika2011.pdf (in Greek)
]Search in Google Scholar
[
Clark, W. S. 2004. Wave molt of the primaries of Accipitrid raptors, and its use in ageing. – In: Chancellor, R. D. & Meyburg, B.-U. (eds.) Raptors worldwide: Proceedings of the V. World Conference on Birds of Prey. – World Working Group on Birds of Prey, Berlin, Germany, pp. 795–804.
]Search in Google Scholar
[
Cramp, S. & Simmons, K. 1980. The birds of the Western Palearctic, Vol. 2. – Oxford University Press, London
]Search in Google Scholar
[
del Hoyo, J., Elliott, A. & Sargatal, J. 1994. Handbook of the Birds of the World. Vol. 2: New World Vultures to Guineafowl. – Lynx Edicions, Barcelona
]Search in Google Scholar
[
Del Moral, J. C. & Molina, B. (eds.) 2018. El buitre Leonado en Espana. Poblacion reproductora en 2008 y metodo de censo. The Griffon Vulture in Spain. Breeding population in 2018 and census methods. – Madrid: SEO/ BirdLife (in Spanish)10.31170/0066
]Search in Google Scholar
[
Demerdzhiev, D., Hristov, H., Dobrev, D., Angelov, I. & Kurtev, M. 2014. Long-term population status, breeding parameters and limiting factors of the Griffon Vulture (Gyps fulvus) population in Eastern Rhodopes, Bulgaria. – Acta Zoologica Bulgarica 66(3): 373–384.
]Search in Google Scholar
[
Deygout, C., Gault, A., Duriez, O., Sarrazin, F. & Bessa-Gomes, C. 2010. Impact of food predictability on social facilitation by foraging scavengers. – Behavioral Ecology 21(6): 1131–1139. DOI: 10.1093/beheco/arq12010.1093/beheco/arq120
]Search in Google Scholar
[
Dobrev, D., Tsiakiris, R., Skartsi, T., Dobrev, V., Arkumarev, V., Stara, K., Stamenov, A., Probonas, N., Kominos, T., Galanaki, A., Kret, E., Hallmann, B., Grubac, B., Susic, G., Marinkovic, S., Hribsek, I., Skoric, S., Jerrentrup, H., Lucic, V., Kapelj, S., Stoyanov, G., Zakkak, S., Hristov, H., Stoychev, S., Sidiropoulos, L., Bino, T. & Demerdzhiev, D. 2021a Long-term size and range changes of the Griffon Vulture Gyps fulvus population in the Balkans: a review. – Bird Conservation International, First View, pp. 1–16. DOI: 10.1017/S095927092100019810.1017/S0959270921000198
]Search in Google Scholar
[
Dobrev, D., Arkumarev, V., Dobrev, V., Stamenov, A. & Demerdzhiev, D. 2021b Use and selection of roost sites by Eurasian Griffon Vultures Gyps fulvus in Bulgaria. – Bird Study 67(4): 496–504. DOI: 10.1080/00063657.2021.1950122.10.1080/00063657.2021.1950122
]Search in Google Scholar
[
Doutau, B., Cafkaletou-Diaz, A., Carcamo, B., Vasilakis, D. & Kret, E. 2011. Impacts of wind farms on the birds of prey of Thrace. – Annual Technical Report August 2009–August 2010, WWF Greece. http://www.wwf.gr/images/pdfs/WWF-aiolika-arpaktika2011-etisio.pdf (in Greek)
]Search in Google Scholar
[
Duriez, O., Kato, A., Tromp, C., Dell’Omo, G., Vyssotski, A. L., Sarrazin, F. & Ropert-Coudert, Y. 2014. How cheap is soaring flight in raptors? A preliminary investigation in freely-flying vultures. – PLoS ONE 9(1): e84887. DOI: 10.1371/journal.pone.008488710.1371/journal.pone.0084887389315924454760
]Search in Google Scholar
[
Fergusson-Lees, J. & Christie, D. 2001. Raptors of the World. – Christopher Helm, London
]Search in Google Scholar
[
García-Ripollés, C., López-López, P. & Urios, V. 2011. Ranging behaviour of non-breeding Eurasian Griffon Vultures Gyps fulvus: a GPS-telemetry study. – Acta Ornithologica 46(2): 127–134. DOI: 10.3161/000164511x62589210.3161/000164511X625892
]Search in Google Scholar
[
Genero, F., Franchini, M., Fanin, Y. & Filacorda, S. 2020. Spatial ecology of non-breeding Eurasian Griffon Vultures Gyps fulvus in relation to natural and artificial food availability. – Bird Study 67(1): 53–70. DOI: 10.1080/00063657.2020.173453410.1080/00063657.2020.1734534
]Search in Google Scholar
[
Gitzen, R. A., Millspaugh, J. J. & Kernohan, B. J. 2006. Bandwidth selection for fixed-kernel analysis of animal utilization distributions. – Journal of Wildlife Management 70(5): 1334–1344. DOI: 10.2193/0022-541X(2006) 70[1334:BSFFAO]2.0.CO;2
]Search in Google Scholar
[
Grilli, M. G., Bildstein, K. L. & Lambertucci, S. A. 2019. Nature’s clean-up crew: Quantifying ecosystem services offered by a migratory avian scavenger on a continental scale. – Ecosystem Services 39: 100990. DOI: 10.1016/j. ecoser.2019.100990
]Search in Google Scholar
[
Harel, R., Spiegel, O., Getz, W. M. & Nathan, R. 2017. Social foraging and individual consistency in following behaviour: testing the information centre hypothesis in free-ranging vultures. – Proceedings of the Royal Society B 284: 20162654. DOI: 10.1098/rspb.2016.265410.1098/rspb.2016.2654539465728404771
]Search in Google Scholar
[
Herrmann, E. 2011. R interface etc. by Martin Maechler plugdensity: Plug-in Kernel Density Estimation. – R package version 0.8-3. https://CRAN.R-project.org/package=plugdensity
]Search in Google Scholar
[
Hribsek, I., Plecas, M., Skoric, S. & Marinkovic, S. 2021. First description of movement and ranging behavior of the Griffon Vulture (Gyps fulvus) from Serbia using GPS satellite tracking. – Archives of Biological Sciences 73(2): 185–195. DOI: 10.2298/ABS201210013H10.2298/ABS201210013H
]Search in Google Scholar
[
Kafetzis, A., Kret, E., Skartsi, T., Vasilakis, D. & Christopoulou, I. 2017. – Wind farms in areas of high ornithological value-conflicts, solutions, challenges: The case of Thrace, Greece. – In: Koppel, J. (ed.) Wind Energy and Wildlife Interactions. – Presentations from the CWW 2015 Conference pp. 191–205 – Springer10.1007/978-3-319-51272-3_11
]Search in Google Scholar
[
Kane, A., Wolter, K., Neser, W., Kotze, A., Naidoo, V. & Monadjem, A. 2016. Home range and habitat selection of Cape Vultures Gyps coprotheres in relation to supplementary feeding. – Bird Study 63(3): 387–394. DOI: 10.1080/00063657.2016.1214105.10.1080/00063657.2016.1214105
]Search in Google Scholar
[
Kenward, R. E. 2001. A Manual for Wildlife Radio Tagging. – London: Academic Press
]Search in Google Scholar
[
Kmetova-Biro, E., Stoynov, E., Ivanov, I., Peshev, H., Marin, S., Bonchev, L., Stoev, I. P., Stoyanov, G., Nikolova, Z., Vangelova, N., Parvanov, D. & Grozdanov, A. 2021. Re-introduction of Griffon Vulture (Gyps fulvus) in the Eastern Balkan Mountains, Bulgaria - completion of the establishment phase 2010–2020. – Biodiversity Data Journal 9: e66363. DOI: 10.3897/BDJ.9.e6636310.3897/BDJ.9.e66363807934333927547
]Search in Google Scholar
[
Kranstauber, B., Cameron, A., Weinzerl, R., Fountain, T., Tilak, S., Wikelski, M. & Kays, R. 2011. The Movebank data model for animal tracking. – Environmental Modelling and Software 26(6): 834–835. DOI: 10.1016/j. envsoft.2010.12.005
]Search in Google Scholar
[
Kruger, S., Reid, T. & Amar, A. 2014. Differential range use between age classes of Southern African Bearded Vultures Gypaetus barbatus. – PLoS One 9(12): e114920. DOI: 10.1371/journal.pone.011492010.1371/journal.pone.0114920428112225551614
]Search in Google Scholar
[
Lopez-Lopez, P., García-Ripolles, C. & Urios, V. 2014. Food predictability determines space use of endangered vultures: implications for management of supplementary feeding. – Ecological Applications 24(5): 938–949. DOI: 10.1890/13-2000.110.1890/13-2000.125154088
]Search in Google Scholar
[
McGrady, M. & Gavashelishvili, A. 2006. Tracking vultures from the Caucasus into Iran. –Podoces 1(1/2): 21–26.
]Search in Google Scholar
[
Monsarrat, S., Benhamou, S., Sarrazin, F., Bessa-Gomes, C., Bouten, W. & Duriez, O. 2013. How predictability of feeding patches affects home range and foraging habitat selection in avian social scavengers? – PLoS One 8(1): e53077. DOI: 10.1371/journal.pone.005307710.1371/journal.pone.0053077353681723301024
]Search in Google Scholar
[
Noidou, M. & Vasilakis, D. 2011. Characterizing Eurasian Black Vulture’s (Aegypius monachus) flight movement corridors in Thrace: a need for conservation on a landscape-level scale. – Report of WWF Greece pp 16. https://www.contentarchive.wwf.gr/images/pdfs/WWF-Flight-movement-corridors-2011.pdf
]Search in Google Scholar
[
Pain, D. J., Cunningham, A. A., Donald, P. F., Dukworth, J. W., Houston, D. C., Katzner, T., Parry-Jones, J., Poole, C., Prakash, V., Round, P. & Timmins, R. 2003. Causes and effects of temporal and spatial declines of Gyps vultures in Asia. – Conservation Biology 17(3): 661–671. DOI: 10.1046/j.1523-1739.2003.01740.x10.1046/j.1523-1739.2003.01740.x
]Search in Google Scholar
[
Peshev, H., Grozdanov, A., Kmetova-Biro, E., Ivanov, I., Stoyanov, G., Tsiakiris, R., Marin, S., Marinković, S., Sušić, G., Lisichanets, E., Hribšek, I., Karić, Z., Kapelj, S., Bonchev, L. & Stoynov, E. 2021. New insight into spatial ecology of Griffon Vulture (Gyps fulvus) on the Balkans provides opportunity for focusing conservation actions for a threatened social scavenger. – Biodiversity Data Journal 9: e71100. DOI: 10.3897/BDJ.9.e7110010.3897/BDJ.9.e71100840560234531699
]Search in Google Scholar
[
Peshev, H., Stoynov, E., Parvanov, D. & Grozdanov, A. 2018. Seasonal and spatial dynamics of the population of the Griffon Vulture Gyps fulvus (Hablizl, 1783) (Aves: Accipitridae) in Southwestern Bulgaria. – Acta Zoologica Bulgarica Suppl. 12: 67–75.
]Search in Google Scholar
[
Phipps, W. L., Willis, S. G., Wolter, K. & Naidoo, V. 2013. Foraging ranges of Immature African White-Backed Vultures (Gyps africanus) and their use of protected areas in Southern Africa. – Plos One 8(1): e52813. DOI: 10.1371/journal.pone.0052813.10.1371/journal.pone.0052813355965023382824
]Search in Google Scholar
[
QGIS Development Team 2020. QGIS Geographic Information System. – Open Source Geospatial Foundation Project. http://qgis.osgeo.org
]Search in Google Scholar
[
R Core Team 2020. R: A language and environment for statistical computing. – R Foundation for Statistical Computing, Vienna, Austria. https://www.R-project.org
]Search in Google Scholar
[
Ruxton, G. D. & Houston, D. C. 2004. Obligate vertebrate scavengers must be large soaring fliers. – Journal of Theoretical Biology 228(3): 431–436. DOI: 10.1016/j.jtbi.2004.02.00510.1016/j.jtbi.2004.02.00515135041
]Search in Google Scholar
[
Spiegel, O., Harel, R., Getz, W. M. & Nathan, R. 2013a Mixed strategies of Griffon Vultures’ (Gyps fulvus) response to food deprivation lead to a hump-shaped movement pattern. – Movement Ecology 1(1):5. DOI: 10.1186/2051-3933-1-510.1186/2051-3933-1-5433737825709819
]Search in Google Scholar
[
Spiegel, O., Getz, W. M. & Nathan, R. 2013b Factors influencing foraging search efficiency: Why do scarce Lappet-faced Vultures outperform ubiquitous White-backed Vultures? – The American Naturalist 181(5): 102–115. DOI: 10.1086/67000910.1086/67000923594555
]Search in Google Scholar
[
Statsoft 2010. STATISTICA (data analysis software system), version 10. – www.statsoft.com
]Search in Google Scholar
[
Tucker, M. A., Alexandrou, O., Bierregaard, R. O., Bildstein, K. L., Böhning-Gaese, K., Bracis, C., Brzorad, J. N., Buechley, E. R., Cabot, D., Calabrese, J. M., Carrapato, C., Chiaradia, A., Davenport, L. C., Davidson, S. C., Desholm, M., DeSorbo, C. R., Domenech, R., Enggist, P., Fagan, W. F., Farwig, N., Fiedler, W., Fleming, C. H., Franke, A., Fryxell, J. M., García-Ripollés, C., Grémillet, D., Griffin, L. R., Harel, R., Kane, A., Kays, R., Kleyheeg, E., Lacy, A. E., LaPoint, S., Limiñana, R., López-López, P., Maccarone, A. D., Mellone, U., Mojica, E. K., Nathan, R., Newman, S. H., Noonan, M. J., Oppel, S., Prostor, M., Rees, E. C., Ropert-Coudert, Y., Rösner, S., Sapir, N., Schabo, D., Schmidt, M., Schulz, H., Shariati, M., Shreading, A., Paulo Silva, J., Skov, H., Spiegel, O., Takekawa, J. Y., Teitelbaum, C. S., van Toor, M. L., Urios, V., Vidal-Mateo, J., Wang, Q., Watts, B. D., Wikelski, M., Wolter, K., Žydelis, R. & Mueller, T. 2019. Large birds travel farther in homogeneous environments. – Global Ecology and Biogeography 28(5): 576–587. DOI: 10.1111/geb.12875.10.1111/geb.12875
]Search in Google Scholar
[
Vasilakis, D. P., Whitfield, D. P., Schindler, S., Poirazidis, K. S. & Kati, V. 2016. Reconciling endangered species conservation with wind farm development: Cinereous Vultures (Aegypius monachus) in South-Eastern Europe. – Biological Conservation 196: 10–17. DOI: 10.1016/j.biocon.2016.01.01410.1016/j.biocon.2016.01.014
]Search in Google Scholar
[
Walter, W. D., Fischer, J. W., Baruch-Mordo, S. & VerCauteren, K. C. 2011. – What is the proper method to delineate home range of an animal using today’s advanced GPS telemetry systems: the initial step. – In: Krejcar, O. (ed.) Modern Telemetry. – Tech Open Access Publisher, Rijeka, Croatia, pp. 249–268.
]Search in Google Scholar
[
Worton, B. J. 1989. Kernel methods for estimating the utilization distribution in home-range studies. – Ecology 70(1): 164–168.10.2307/1938423
]Search in Google Scholar
[
Xirouchakis, S. 2010. Breeding biology and reproductive performance of Griffon Vultures Gyps fulvus on the island of Crete (Greece). – Bird Study 57(2): 213–35. DOI: 0.1080/0006365090350575410.1080/00063650903505754
]Search in Google Scholar
[
Xirouchakis, S. M., Grivas, C., Andreou, G. & Georgopoulou, E. 2021. Home range size, space use and resource selection of Griffon Vultures in an insular environment. – Journal of Zoology 314(2): 116–131. DOI: 10.1111/jzo.1286810.1111/jzo.12868
]Search in Google Scholar
[
Xirouchakis, S. M. & Andreou, G. 2009. Foraging behavior and flight characteristics of Griffon Vultures (Gyps fulvus) on the island of Crete (Greece). – Wildlife Biology 15(1): 37–52. DOI: 10.2981/07-09010.2981/07-090
]Search in Google Scholar
[
Xirouchakis, S. M. & Mylonas, M. 2007. Breeding behavior and parental care in the Griffon Vulture Gyps fulvus on the island of Crete (Greece). – Ethology Ecology & Evolution 19: 1–26. DOI: 10.1080/08927014.2007.952257810.1080/08927014.2007.9522578
]Search in Google Scholar
[
Yamac, E. & Bilgin, C. 2012. Post-fledging movements of Cinereous Vultures Aegypius monachus in Turkey revealed by GPS telemetry. – Ardea 100(2): 149–156. DOI: 10.5253/078.100.020610.5253/078.100.0206
]Search in Google Scholar
[
Zuberogoitia, I., De La Puente, J., Elorriaga, J., Alonso, R., Palomares, L. & Martínez, J. 2013. The flight feather molt of Griffon Vultures (Gyps fulvus) and associated biological consequences. – Journal of Raptor Research 47(3): 292–303. DOI: 10.3356/jrr-12-09.110.3356/JRR-12-09.1
]Search in Google Scholar