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Frequency, density and numbers of some breeding birds in the south part of Kresna George (SW Bulg...
Contibutors: Nikolov, Stoyan Ch. (author) / Spasov, Svetoslav D. (author)
Source: Acrocephalus
Numbering: 2005, volume 26, issue 124
Provider: Društvo za opazovanje in proučevanje ptic Slovenije
1. PDF document (3729 kB)
1. TXT document (38 kB)
Some new findings pigmy owl Glaucidium passerinum and tengmalm's owl Aegolius funereus in western...
Contibutors: Shurulinkov, Peter (author) / Stoyanov, George (author)
Source: Acrocephalus
Numbering: 2006, volume 27, issue 128/129
Provider: Društvo za opazovanje in proučevanje ptic Slovenije
1. PDF document (107 kB)
1. TXT document (15 kB)
Dynamics of the departure of magpies Pica pica at a communal roost-site in Sofia (W Bulgaria)
Contibutors: Milchev, Boyan (author)
Source: Acrocephalus
Numbering: 2008, volume 29, issue 138/139
Provider: Društvo za opazovanje in proučevanje ptic Slovenije
1. PDF document (306 kB)
1. TXT document (21 kB)
Birds in the diet of barn owl Tyto alba in SE Bulgaria
Contibutors: Milchev, Boyan (author) / Boev, Zlatozar (author) / Georgiev, Valeri (author)
Source: Acrocephalus
Numbering: 2006, volume 27, issue 128/129
Provider: Društvo za opazovanje in proučevanje ptic Slovenije
1. PDF document (155 kB)
1. TXT document (15 kB)
Distribution, numbers and habitat of pigmy owl Glaucidium passerinum in Rhodopes Mts (S Bulgaria)
Contibutors: Shurulinkov, Peter (author) / Ralev, Andrey (author) / Daskalova, Girgina (author) / Chakarov, Nayden (author)
Source: Acrocephalus
Numbering: 2007, volume 28, issue 135
Provider: Društvo za opazovanje in proučevanje ptic Slovenije
1. PDF document (165 kB)
1. TXT document (20 kB)
Diet of the red-backed shrike Lanius collurio in Bulgaria
Contibutors: Nikolov, Boris P. (author)
Source: Acrocephalus
Numbering: 2002, volume 23, issue 110/111
Provider: Društvo za opazovanje in proučevanje ptic Slovenije
1. PDF document (607 kB)
1. TXT document (18 kB)
Observations of the common rosefinch Carpodacus erythrinus in Bulgaria in 2006 and 2007
Contibutors: Nikolov, Stoyan Ch. (author) / Ragyov, Dimitar (author) / Linnartz, Leo (author) / Gradinarov, Dimitar (author)
Source: Acrocephalus
Numbering: 2008, volume 29, issue 136
Provider: Društvo za opazovanje in proučevanje ptic Slovenije
1. PDF document (1491 kB)
1. TXT document (9 kB)
Late nesting of the common swift Apus apus and the pallid swift Apus pallidus in Bulgaria
Contibutors: Stoyanov, George (author) / Shurulinkov, Peter (author)
Source: Acrocephalus
Numbering: 2003, volume 24, issue 119
Provider: Društvo za opazovanje in proučevanje ptic Slovenije
1. PDF document (87 kB)
1. TXT document (10 kB)
Ferruginous duck Aythya nyroca breeding population development and habitat selection at Durankula...
Contibutors: Petkov, Nikolai (author)
Source: Acrocephalus
Numbering: 2003, volume 24, issue 118
Provider: Društvo za opazovanje in proučevanje ptic Slovenije
1. PDF document (377 kB)
1. TXT document (36 kB)
Observations on breeding and nonbreeding birds in the Central Fore-Balkan, northern Bulgaria
Contibutors: Nikolov, Ivailo Petrov (author)
Source: Acrocephalus
Numbering: 2004, volume 25, issue 120
Provider: Društvo za opazovanje in proučevanje ptic Slovenije
1. PDF document (215 kB)
1. TXT document (32 kB)
Study on the habitat selection by birds in mature and over-mature Macedonian Pine Pinus peuce for...
Contibutors: Nikolov, Stoyan Ch. (author)
Source: Acrocephalus
Numbering: 2007, volume 28, issue 134
Provider: Društvo za opazovanje in proučevanje ptic Slovenije
1. PDF document (352 kB)
1. TXT document (43 kB)
Status of the masked shrike Lanius nubicus in Bulgaria
Contibutors: Demerdzhiev, Dimitar (author) / Stoychev, Stoycho (author)
Source: Acrocephalus
Numbering: 2008, volume 29, issue 137
Provider: Društvo za opazovanje in proučevanje ptic Slovenije
1. PDF document (557 kB)
1. TXT document (20 kB)
High-altitude records of the great grey shrike Lanius excubitor in Bulgaria during migration and ...
Contibutors: Nikolov, Boris P. (author) / Stoyanov, George (author) / Ragyov, Dimitar (author) / Shurulinkov, Peter (author) / Nikolov, Ivailo Petrov (author)
Source: Acrocephalus
Numbering: 2008, volume 29, issue 138/139
Provider: Društvo za opazovanje in proučevanje ptic Slovenije
1. PDF document (89 kB)
1. TXT document (10 kB)
The recent status of breeding bird communities of Srebarna biosphere reserve (NE Bulgaria)
Contibutors: Kambourova, Nevena (author)
Source: Acrocephalus
Numbering: 2005, volume 26, issue 125
Provider: Društvo za opazovanje in proučevanje ptic Slovenije
1. PDF document (554 kB)
1. TXT document (57 kB)
A review of the observations of great spotted cuckoo Clamator glandarius in Bulgaria in 2006 and ...
Contibutors: Nikolov, Stoyan Ch. (author) / Profirov, Lyubomir (author) / Gerdjikov, Georgi (author) / Gradinarov, Dimitar (author)
Source: Acrocephalus
Numbering: 2007, volume 28, issue 133
Provider: Društvo za opazovanje in proučevanje ptic Slovenije
1. PDF document (459 kB)
1. TXT document (8 kB)
Population development of the White-tailed Eagle Haliaeetus albicilla in Bulgaria in the period f...
Contibutors: Ivanov, Bojidar (author)
Source: Acrocephalus
Numbering: 2007, volume 28, issue 132
Provider: Društvo za opazovanje in proučevanje ptic Slovenije
1. PDF document (796 kB)
1. TXT document (19 kB)
The ferruginous duck Aythya nyroca as a potential indicator species for tracking ecological chang...
Contibutors: Petkov, Nikolai (author)
Source: Acrocephalus
Numbering: 2006, volume 27, issue 128/129
Provider: Društvo za opazovanje in proučevanje ptic Slovenije
1. PDF document (216 kB)
1. TXT document (27 kB)
Ant-associated rove beetles (Coleoptera: Staphylinidae) in Bulgaria
Contibutors: Lapeva-Gjonova, Albena (author) / Ilieff, Ognyan (author)
Source: Acta entomologica slovenica (Ljubljana)
Numbering: 2012, volume 20, issue 1
Provider: Prirodoslovni muzej Slovenije
1. PDF document (277 kB)
1. TXT document (31 kB)
Orfelia gruevi spec. nov. from Bulgaria (Diptera: Sciaroidea: Keroplatidae)
Contibutors: Bechev, Dimitar (author)
Source: Acta entomologica slovenica (Ljubljana)
Numbering: 2002, volume 10, issue 2
Provider: Prirodoslovni muzej Slovenije
1. PDF document (339 kB)
1. TXT document (4 kB)
Contribution to the knowledge of species of the genus Anthrenus, subgenus Florilinus from Bulgari...
Contibutors: Háva, Jiři (author)
Source: Acta entomologica slovenica (Ljubljana)
Numbering: 2006, volume 14, issue 2
Provider: Prirodoslovni muzej Slovenije
1. PDF document (258 kB)
1. TXT document (12 kB)
Addenda to the fauna of Cicadina (Hemiptera) of Bulgaria
Contibutors: Emeljanov, Alexandr F. (author) / Gnezdilov, Vladimir M. (author) / Gjonov, Ilija V. (author)
Source: Acta entomologica slovenica (Ljubljana)
Numbering: 2002, volume 10, issue 1
Provider: Prirodoslovni muzej Slovenije
1. PDF document (469 kB)
1. TXT document (19 kB)
New data on the birds of Ponor mountains, (W Bulgaria)
Contibutors: Nikolov, Stoyan Ch. (author)
Source: Acrocephalus
Numbering: 2006, volume 27, issue 128/129
Provider: Društvo za opazovanje in proučevanje ptic Slovenije
1. PDF document (234 kB)
1. TXT document (7 kB)
A short review of the status of bonnelli's eagle Hieraaetus fasciatus in Bulgaria
Contibutors: Nikolov, Stoyan Ch. (author) / Ivanov, Bojidar (author) / Iankov, Petar (author) / Dambiermont, Jean-Louis (author)
Source: Acrocephalus
Numbering: 2006, volume 27, issue 128/129
Provider: Društvo za opazovanje in proučevanje ptic Slovenije
1. PDF document (77 kB)
1. TXT document (4 kB)
A recent evidence of the spring migration of mediterranean shearwater Puffinus yelkouan along th...
Contibutors: Nikolov, Stoyan Ch. (author) / Georgiev, Dimiter (author) / Ivanov, Bojidar (author) / Iankov, Petar (author)
Source: Acrocephalus
Numbering: 2006, volume 27, issue 128/129
Provider: Društvo za opazovanje in proučevanje ptic Slovenije
1. PDF document (90 kB)
1. TXT document (8 kB)
Evidence for the regular spring and autumn migration of terek sandpiper Xenus cinereus along the ...
Contibutors: Nikolov, Stoyan Ch. (author) / Georgiev, Dimiter (author) / Ivanov, Bojidar (author) / Iankov, Petar (author)
Source: Acrocephalus
Numbering: 2006, volume 27, issue 128/129
Provider: Društvo za opazovanje in proučevanje ptic Slovenije
1. PDF document (86 kB)
1. TXT document (5 kB)
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