New Canada-wide land bird density estimates (version 4.0)
Population sizes, habitat associations, and distributions for 143 landbird species to support status assessment, regional planning, conservation prioritization, and recovery of species at risk.
In 2020, BAM launched version 4.0 of our Canada-wide density models for 143 species of landbirds.
The development of national-scale products is challenged by sparse data in remote regions, complex species' responses to environmental factors, regional variation in habitat selection and more. However, reliable information on species’ population sizes, trends, habitat associations, and distributions is important for conservation planning and management.
To support avian conservation in Canada, BAM developed a generalized analytical approach to model species densities in relation to environmental covariates. We used the BAM database and built models for 143 species. Learn more about these methods and models.
We provide data and maps of population sizes, habitat associations, and distributions for 143 landbird species. We provide our density results as 1 km² resolution raster layers, which are used to calculate population sizes and regional habitat associations.