Trends op basis van de Algemene Broedvogelmonitoring Vlaanderen (ABV): Technisch achtergrondrapport voor de periode 2007-2022

This report publishes the most recent analyses based on census work for the project "General Breeding Bird Monitoring Flanders" or ABV for short, a joint initiative of INBO and Natuurpunt Studie in collaboration with local bird working groups.
The project was started in 2007 and aims to describe population trends of a set of about 80 general breeding bird species in Flanders. Both annual fluctuations and multi-annual trends are interesting results in function of local, regional and international policy.
This report is a technical background report. It consists of three parts: the first part describes the methodology of processing and presenting the results; the second part presents a number of indicators based on multi-species trends; the third part describes the time series of individual species. We limit ourselves in parts two and three to a standardised representation of the most relevant figures without ecological interpretation. For an ecological interpretation of the results, we refer to other publications such as INBO Vogelnieuws.