| Persistent electrocution mortality of Egyptian Vultures Neophron percnopterus over 28 years in East Africa I Angelov, I Hashim, S Oppel Bird Conservation International 23 (1), 1-6, 2013 | 157 | 2013 |
| Long-term population status, breeding parameters and limiting factors of the Griffon Vulture (Gyps fulvus Hablizl, 1783) population in the Eastern Rhodopes, Bulgaria D Demerdzhiev, H Hristov, D Dobrev, I Angelov, M Kurtev Acta zoologica bulgarica 66 (3), 373-384, 2014 | 43 | 2014 |
| Impact of power lines on bird mortality in Southern Bulgaria DA Demerdzhiev, S Stoychev, T Petrov, I Angelov, N Nedyalkov Acta Zoologica Bulgarica 61 (2), 175-183, 2009 | 36 | 2009 |
| Large increase of the Egyptian vulture Neophron percnopterus population on Masirah island, Oman I Angelov, T Yotsova, M Sarrouf, MJ McGrady Sandgrouse 34, 140-152, 2013 | 26 | 2013 |
| Status of the Eastern Imperial Eagle (Aquila heliaca) in the European part of Turkey D Demerdzhiev, S Stoychev, N Terziev, ID Angelov Acta Zoologica Bulgarica 3, 87-93, 2011 | 16 | 2011 |
| Population status of breeding Saker Falcons (Falco cherrug) in Turkey A Dixon, D Ragyov, Z Ayas, M Deli, D Demerdzhiev, I Angelov, E Kmetova, ... Avian Biology Research 2 (4), 213-220, 2009 | 14 | 2009 |
| A globally-important stronghold in Oman for a resident population of the endangered Egyptian Vulture Neophron percnopterus I Angelov, C Bougain, M Schulze, T Al Sariri, M McGrady, BU Meyburg Ardea 108 (1), 73-82, 2020 | 13 | 2020 |
| Possible sighting of the Indian subspecies of the Egyptian Vulture Neophron percnopterus ginginianus in Africa I Angelov, B Abdu, N Terziev, S Zelleke Vulture News 64, 44-49, 2013 | 9 | 2013 |
| Possible mixed pairing between Saker Falcon (Falco cherrug) and barbary Falcon (Falco pelegrinoides) in China I Angelov, L Lei, Y Mei, I Balázs, M Ma, A Dixon Falco 28, 14-15, 2006 | 9 | 2006 |
| National action plan for conservation of the Egyptian Vulture (Neophron percnopterus) in Bulgaria M Kurtev, P Iankov, I Angelov BSPB, Sofia, 2008 | 8 | 2008 |
| Use of Carcasses from Wolf Kills by Griffon Vultures in Eastern Rhodopes, Bulgaria I Angelov, D Demerdjiev, S Stoychev CONSERVATION AND MANAGEMENT OF VULTURE POPULATIONS, 160, 2005 | 8 | 2005 |
| A literature review of occurrence of Egyptian Vulture (Neophron percnopterus) resident in Africa V Arkumarev, M McGrady, I Angelov Vulture News 77, 1-54, 2019 | 7 | 2019 |
| First record on ground nesting of Egyptian Vulture Neophron percnopterus (Aves: Accipitriformes) in continental Europe S Nikolov, C Nikolov, I Angelov Acta Zool. Bulg 65 (2), 417-419, 2013 | 7 | 2013 |
| The Role of Wolf (Canis lupus L.) in the Rhodope Mountains in the Beginning of the 21st Century P Genov, A Dutsov, D Dimitrova, N Stoyanova, I Angelov, D Zlatanova, ... Acta Zoologica Bulgarica, 153-160, 2008 | 7 | 2008 |
| A corridor of soaring bird migration in Lebanon on the Eastern Mediterranean flyway BU Meyburg, I Angelov, S Azar Sandgrouse 42, 46-58, 2020 | 6 | 2020 |
| Egyptian Vulture Neophron percnopterus M Kurtev, I Angelov, D Demerdjiev, E Stoynov, P Iankov, H Hristov Atlas of breeding birds in Bulgaria. BSPB Conservation Series, Book 10, 132-133, 2007 | 6 | 2007 |
| Foraging Patterns of Non-Territorial Eastern Imperial Eagle (Aquila heliaca): A Case of Successful Adaptation D Demerdzhiev, I Angelov, D Dobrev Diversity 14 (12), 1060, 2022 | 4 | 2022 |
| First record of Bonelli’s Eagle Aquila fasciatus in Sudan I Angelov, I Hashim Scopus: Journal of East African Ornithology 31, 42-45, 2011 | 3 | 2011 |
| Peregrine in Bulgaria–general overview D Ragyov¹, D Demerdziev, I Angelov | 3 | 2008 |
| The Goosander range expansion on the Balkan Peninsula and a new breeding population in Bulgaria D Dobrev, B Borisov, V Dobrev, V Arkumarev, I Angelov, S Stoychev Acrocephalus 41 (184-185), 25-30, 2020 | 2 | 2020 |
Stoycho StoychevConservation director, Bulgarian Society for the Protection of Birds – BirdLIfe partnerDirección de correo verificada de bspb.org
