(Puffinus yelkouan)Category of conservation concern (IUCN, 2020) - Vulnerable Population size: 0 – 10 pairs Distribution pattern No data about definite breeding of the species in Bulgaria in the last few decades. Breeds probably on rocky areas along the Black Sea...
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Yellow-legged Gull
(Larus michahellis)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 5 000 – 7 000 pairs Distribution pattern With dispersed distribution, more grouped in a linear shape along the Black Sea coast (where it breeds mainly in the coastal...
Yellow-billed Chough
(Pyrrhocorax graculus)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 1 500 – 2 500 pairs Distribution pattern With patchy and dispersed distribution, concentrated on the high rocky parts of Central and Western Stara Planina, Rila,...
Yellow Wagtail
(Motacilla flava)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 100 000 - 500 000 pairs Distribution pattern With ubiquitous distribution over most of the country, covering its plains, some open areas and valleys in the foothills and...
Yellowhammer
(Emberiza citrinella)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 50 000 - 80 000 pairs Distribution pattern With patchy and dispersed distribution, more consistent in the forested mountains and in some forested areas in Northern...