Farmland bird population (i73)

Definition: the farmland bird population index is an aggregated indicator of demographic estimates of 17 species of farmland birds with 1990 as the reference year (1990 = 100). The data come from annual surveys on breeding birds and are collected in the framework of a pan-European bird monitoring network. The data come from INBO, Natagora and SPARNE-DEMNA for Belgians and the regions and from Eurostat for Europe.