Eurasian River Warbler

(Locustella fluviatilis)

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

Population size: 130 – 530 pairs

Distribution pattern

With dispersed and patchy distribution, with nesting grounds in places along the Danube River and Lomovete, and isolated ones in the Danubian Plain and in the Sofia Field. Isolated sites are found also along the Black Sea coast, Dobrudzha, the Thracian Plain, Eastern Rhodopes, Rupite, etc. Although the observations were of singing males during the breeding season, most likely they are non – breeding single specimens.

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 mainly in bogs and marshes, in water – fringe vegetation, including in brushwood of Amorpha sp. and Salix sp., with grass and climbing plants on wet soils (Belene Island). In Northwestern Bulgaria found also in forested valleys near dams, similar in nature to alluvial and riverine forests and brush.

Trends in population changes for the period 2013-2020

Not analysed

Threats

Not analysed