Data of the Swiss common breeding bird monitoring program.

ABSTRACT: The Swiss Common Breeding Bird Monitoring ("Monitoring Häufige Brutvögel" MHB) is a long-term study organized by the Swiss Ornithological Institute. Its main goal is to collect data for estimating breeding population trends of relatively abundant and widespread species. Since 1999, 267 one-km squares laid out in a mostly systematic grid across all of Switzerland have been surveyed annually by skilled, mostly volunteer ornithologists. The sampling sites thus cover a wide range of typical Western European habitats, and an altitudinal range from 250 up to 2750 m above sea level. Bird populations are recorded using a simplified territory mapping protocol with two visits per square above the timberline and three elsewhere. Surveys are conducted during the breeding season (mid-April to early Jul

SUBMITTER: Strebel N 

PROVIDER: S-EPMC12683608 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature