Long-term patterns of garden use
How garden use by species has changed over time
Participants record the maximum number of individuals seen at any one time in their garden. We then average these counts across sites to calculate the average maximum weekly count. The reporting rate is a measure of the proportion of gardens which observed that species during a particular week.
What we can learn from 25 years of watching gardens
Exploring the value of a complete quarter-century of weekly garden bird observations from BTO's Garden BirdWatch covering the length and breadth of the country.