Czech Society for Ornithology

We analysed population trends of 152 bird species using data of the Breeding Bird Monitoring Programme. Results are published in the paper in the journal Sylvia (Reif et al. 2006). Here we add figures depicting annual population indices in 105 species with reliable trend estimates, which were not included in the published paper. The value of each index is 100 % in the first year of the analysed time series (1982). More results and methods of trend estimation are described in the paper Reif et al. (2006), which can be obtained upon request to the first author. Agency for Nature Protection and Landscape Conservation of the Czech Republic supported data management and analyses.

Please download here annual species indices.

Reference:
Reif J., Voříšek P., Šťastný K. & Bejček V. 2006: Population trends of birds in the Czech Republic between 1982 and 2005. Sylvia 42: 22-37.