North American Breeding Bird Survey: Quantitative Foundation of Landbi

A multinational citizen-science based avian monitoring program lead by the US Geological Survey, in cooperation with Environment and Climate Change Canada (ECCC) and the Mexican National Commission for the Knowledge and Use of Biodiversity (CONABIO),

that provides the most reliable, regional and continental trends and annual indices of abundance for >500 bird species facilitating science-based conservation and management of federal and state trust species.