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There are many different Butterfly Monitoring Schemes in Europe that produce reports on the data collected through their BMS. Here you can find some of the reports produced recently:
| Country BMS | Links |
|---|---|
| Austria - Viel-Falter BMS | 2023 (German), 2022 (German) and 2022 (English) |
| Catalunya BMS - Spain | 2021-2022 (Catalan), 2021-2022 (English), 2019-2020 (Catalan) and 2019-2020 (English) |
| Finland BMS | 2021 and 2018 (2.04 MB  ) (Finnish, summaries in English) |
| Germany BMS | 2021 (in German) |
| Ireland BMS | 2023, Butterfly trends for 2008-2022, 2022, 2021 (1.67 MB ) and 2020 (1.65 MB ) (all in English) |
| Italy BMS | 2023 (Italian), 2023 (English), 2021-2022 (Italian), 2021-2022 (English), 2019-2020 (Italian) and 2019-2020 (English) |
| Norway BMS | 2022 butterflies and bumblebees (Norwegian, summary in English) |
| Spain BMS | 2024, 2023, 2022, 2021, 2020 and 2019 (all in Spanish, summary in English) |
| Sweden BMS | 2023, 2022, 2021, 2020 and 2019 (all in Swedish, summary in English) |
| The Netherlands | 2023 - butterflies, dragonflies, moths and bumblebees (4.25 MB ) and 2022 (7.34 MB ) (all in Dutch, trends included) |
| uBMS - Spain | 2022 (5.36 MB ) and 2021 (3.00 MB ) (in Spanish) |
| UK BMS | Wider Countryside Butterfly Survey Annual Newsletter 2022, Annual Report 2021, 2020 (all in English) |
Some BMSs have been collecting data for decades. Such data from long-established monitoring schemes is invaluable as it enables butterfly abundance trends to be calculated. The results of such analyses of long-term datasets are presented in summary reports:
) (in Dutch)