In the absence of a report from the Czech Republic for this taxon, surrogate data were provided by ČSO / BirdLife indicating a breeding population of 0 pairs (last confirmed breeding in 1990s), with an unknown trend during 2001–2012 and a decreasing trend (100%) during 1980–2012.

In the absence of a report from Greece for this taxon, surrogate data were provided by the Hellenic Ornithological Society (HOS), the BirdLife Partner in Greece, indicating a breeding population of 300–500 pairs, with an unknown trend during 2001–2012 and a decreasing trend (5–30%) during 1980–2012.