Dutch Centre For Field Ornithology (SOVON) - Breeding Bird Monitoring Program

Study Extent

The Netherlands 1969 - 2000

Sampling

The Dutch Breeding Bird Monitoring Program('BMP') is based on the method of intensive territory mapping in study plots, as described in depth in the manual 'Handleiding Sovon Broedvogelonderzoek 2011'. As well as numbers of territories, from which population trends are assessed, this method produces a map for each species, census plot and year to show exactly where the birds were (and were not) holding territory.

Quality Control

Data are validated on different levels 1) Methodology (number of visits, timing of the visits etc.) 2) Technical (user input) 3) Observed numbers and species 4) last quality control by Statistics Netherlands before use in National trendanalyses

Method steps

1. * mapping territorial birds in study plots (field work) * create species maps per season * interpret species maps using species specific criteria (manual), automatic interpretation is possible online * the result are clusters of observations that represent a territory of a bird.

1. Avis
   common name: Vogels rank: class

The Netherlands