Atlas of nesting birds in Bulgaria

Willow Warbler

(Phylloscopus trochilus)

Category of conservation concern (IUCN, 2020) – Least Concern

Population size: 10 – 50 pairs

Distribution pattern

With dispersed isolated nests in different parts of the country – both in the plains and in the mountains. Some of the observations are probably of birds singing during migration.

Big size map

Breeding distribution 2013 – 2020 – The distribution and the estimation of the population size of the species for the period 2013 – 2020 is presented –

Comparative distribution of the species compared to the first breeding birds atlas (Iankov, 2007): Breeding locality until 2007 | Breeding locality until 2007, confirmed after 2015 – | New breeding locality after 2015. – The breeding localities after 2015 are identified on a base of raw data from smartbirds.org.

Habitats

Breeds in broad – leaved deciduous forests and less often – in alluvial and riverine forests and brush, in all cases – with dense undergrowth. Registered in coniferous forests.

Trends in population changes for the period 2013-2020

Not analysed

Threats

Not analysed