(Luscinia megarhynchos)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 200 000 – 500 000 pairs Distribution pattern Distributed throughout the country without the middle and high parts of the mountains of the Rila-Rhodope Massif, the...
C
Common Kestrel
(Falco tinnunculus)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 4 000 – 7 500 pairs Density Pattern Uneven, in most of the occupied squares are less than 10 pairs. Higher density in the areas with rock formations and gorge although...
Common Stonechat
(Saxicola torquatus)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 3 000 – 6 000 pairs Distribution pattern With patchy distribution throughout the country without the forested plains and mountains. More compact in South-eastern...
Coal Tit
(Periparus ater)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 300 000 - 600 000 pairs Distribution pattern With patchy and in some areas dispersed distribution. Densely covering the coniferous belt of the mountains of the Rila-Rhodope...
Common Snipe
(Gallinago gallinago)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 2 - 10 pairs Distribution pattern Isolated single localities, mainly in the Thracian Plain, the Sofia Field, along the Danube River, around Burgas, in the area of the...
Corn Bunting
(Emberiza calandra)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 700 000 - 1 000 000 pairs Distribution pattern Everywhere in almost the entire country except for the higher parts of the mountains and the areas with dense...
Common Magpie
(Pica pica)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 200 000 - 300 000 pairs Distribution pattern Distributed in natural and anthropogenic habitats in most of the country except for the mountainous and some other areas with dense...
Common Quail
(Coturnix coturnix)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 15 000 - 35 000 calling males Distribution pattern Widespread in the plains and semi-mountainous parts of the country close to grain crops and meadows, as well as at some...
Common Grasshopper Warbler
(Locustella naevia)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 0 - 5 pairs Distribution pattern With dispersed distribution mainly along the Danube River (the Belene Lowland, the region of the Srebarna Lake, the Kalimok fishponds)...
Chaffinch
(Fringilla coelebs)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 2 000 000 - 6 000 000 pairs Distribution pattern With almost consistent distribution throughout the country, with the exception of some treeless mostly agricultural areas...
Common Cuckoo
(Cuculus canorus)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 20 000-50 000 calling males Distribution pattern Widespread throughout the country, including in the highest parts of the mountains. Avoids places with extensive and...
Common Crossbill
(Loxia curvirostra)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 5 000 - 25 000 pairs Distribution pattern With a patchy distribution in the coniferous belt in the high mountains of the Rila-Rhodope Massif, Vitosha, Western and Central...
Common Starling
(Sturnus vulgaris)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 950 000 - 3 000 000 pairs Distribution pattern With almost ubiquitous distribution throughout the country, except for the high and more consistently forested parts of the...
Common Redshank
(Tringa totanus)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 15 - 35 pairs Distribution pattern With dispersed distribution, more grouped in the main breeding area of the species - the Burgas Wetlands, but single nesting sites are...
Common Coot
(Fulica atra)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 1 700-3 000 pairs Distribution pattern With patchy distribution in the plains and lowlands of the country. More consistently distributed in the Danubian Plain (especially along...
Corncrake
(Crex crex)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 4 000 – 8 800 calling males Distribution pattern With patchy distribution mainly in Northern and in Western Bulgaria and with dispersed habitats in the Southern and the Eastern...
Common Sandpiper
(Actitis hypoleucos)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 100 - 250 pairs Distribution pattern Dispersed all over the country, to a lesser extent in the Eastern part (the Black Sea coast and the adjacent areas, Dobrudzha and...
Common Pheasant
(Phasianus colchicus)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 6 000 – 10 000 pairs The present review concerns the species in general, represented by a population of hybrid specimens obtained from crossbreeding with the...
Crested Lark
(Galerida cristata)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 40 000 - 100 000 pairs Distribution pattern Everywhere in open fields throughout the country without the areas with vast and dense forests and the very mountainous parts...
Crested Tit
(Parus cristatus)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 7000 - 10000 pairs Distribution pattern With patchy distribution in the coniferous belt in the high parts of the mountains Rila, Pirin, Slavyanka, Western Rhodopes and...
Caspian Gull
(Larus cachinans)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 50 - 100 pairs Distribution pattern With limited distribution along the Danube. Currently, colonies of the species are found in Ruse and Silistra, but it is possible that...
Common Kingfisher
(Alcedo atthis)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 1 000 – 2 000 pairs Distribution pattern With grouped and linear distribution, close to the river network (the middle and lower reaches) and to other wetlands in the plains...
Common Moorhen
(Gallinula chloropus)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 5 000-12 000 pairs Distribution pattern With uneven patchy distribution in the plains and lowlands of the whole country, most widespread along the Danube River and in...
Cirl Bunting
(Emberiza cirlus)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 50 000 - 70 000 pairs Distribution pattern With patchy and dispersed distribution in the lower parts of the whole country, more consistent in southern Bulgaria and along...
Common Chiffchaff
(Phylloscopus collybita)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 200 000 - 700 000 pairs Distribution pattern With almost compact distribution throughout the mountainous territory of the country, in the forested plains of...
Calandra Lark
(Melanocorypha calandra)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 3 000 – 5 000 pairs Distribution pattern With patchy and less dispersed distribution in plains and in low hilly areas in different parts of the country, mainly in...
Common Wood Pigeon
(Columba palumbus)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 15 000 - 35 000 pairs Distribution pattern Distributed throughout most of the country, especially in mountainous and semi-mountainous areas, but also in lowland forest...
Common Redstart
(Phoenicurus phoenicurus)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 2 000 – 5 000 pairs Distribution pattern With patchy and dispersed distribution throughout the country, more compact in Strandzha, in the coastal part of Eastern...
Common Whitethroat
(Sylvia communis)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 75 000- 200 000 pairs Distribution pattern Distributed throughout most of the country without some predominantly forested areas in the middle and high parts of the...
Common Raven
(Corvus corax)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 900 – 1 200 pairs Distribution pattern With patchy and dispersed distribution over most of the country, denser in the mountains and more dispersed in the plains.Breeding...
Common Reed Warbler
(Acrocephalus scirpaceus)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 5 000 - 10 000 pairs Distribution pattern With patchy and dispersed distribution, more dense along the Black Sea coast and the Danube River, in the Sofia Field and...
Common Buzzard
(Buteo buteo)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 2 500 – 4 000 pairs Distribution pattern Throughout the country. Not found at some areas in treeless plains with predominant arable lands – locally in the Danubian and the...
Cetti’s Warbler
(Cettia cetti)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 350 – 750 pairs Distribution pattern With limited patchy distribution, mainly along the Southern Black Sea coast, in the southern part of the Struma River Valley and the...
Chukar
(Alectoris chukar)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 1 500 – 3 000 pairs Distribution pattern With patchy distribution in the forestless stony parts of South-eastern Bulgaria in Derventa Hills, Sakar and the Eastern...
Common Swift
(Apus apus)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 8 500 - 20 000 pairs Distribution pattern Patchy distribution, totally covering the mountainous areas and the Black Sea coast. Multiple dispersed or less grouped breeding sites...
Common Tern
(Sterna hirundo)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 2020: 1075 – 2340 pairs (2007: 500 – 1200 pairs) Distribution pattern With dispersed distribution, more grouped in places along the Black Sea coast (mainly in the Burgas...
Collared Pratincole
(Glareola pratincola)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 2020: 133 - 428 pairs (2007: 140 - 180 pairs) Distribution pattern With grouped breeding sites in three differentiated regions – the Thracian Plain (between the towns...
Common Pochard
(Aythya ferina)Category of conservation concern (IUCN, 2020) - Vulnerable Population size: 2020: 69 -266 pairs (2007: 100-250 pairs) Distribution pattern With grouped and dispersed distribution, mainly along the Danube River and the Black Sea coast, where the main...
Common Teal
(Anas crecca)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 2020: 0-6 pairs (2007: 2-15 pairs) Distribution pattern With isolated single breeding habitats in neighbouring squares, mainly along the Danube River, the Black Sea Coast and...
Common Black-headed Gull
(Larus ridibundus)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 2020: 10-99 pairs (2007: 180-250 pairs) Distribution pattern With isolated breeding habitats only along the Danube River (Srabarna Lake, Orsoya and the Kalomok fishponds)...
Common Merganser
(Mergus merganser)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 2020: 2-7 pairs (2007: 2-5 pairs) Distribution pattern For the Common Merganser, a northern species, Bulgaria is on the border of its southernmost breeding range. Breeding...
Common Shelduck
(Tadorna tadorna)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 2020: 110-206 pairs (2007: 30-50 pairs) Distribution pattern Predominantly along the Black Sea coast, mainly around the Burgas bay, where breeding sites are most clearly...