Language: Polish with English summaries and English, Polish and scientific species names
The book describes 241 species of natural occurrence (category A and C) and 11 species of uncertain origin (category D) found in Poland during the last 200 years. Each species account contains the following aspects: geographic range, status, past and present distribution, phenology of occurrence, period of stay, age structure, gregariousness and habitat. Abundance of the rare breeding species has been estimated as: ephemeral (single pairs), extremely scarce (up to 30 pairs), very scarce (31–300 pairs) and scarce (301–3 000 pairs).
The species analysis are based on over 15,000 reports verified by the Polish Avifaunistic Commission during 1972–2015 (including some records from 2016). The list of reviewed and rejected records is presented in the chapter “Revisions”. For each species a set of figures is included presenting annual and month (or decade) occurrence as well as distribution of records in particular provinces.
Despite being written in Polish, the content of the book is easily accessible for everyone because of the many figures and English summary for each species.