Overview
- Volunteers counted 3,246,172 birds in 101,318 gardens, with 144,252 participants taking part, markedly more than last year.
- House sparrow numbers declined about 15 percent nationwide, with a sharper 26 percent drop reported in North Rhine-Westphalia.
- The coal tit displaced the house sparrow in several regional tables, taking the top spot in Niedersachsen and leading many local lists.
- Long-term monitoring shows a sustained fall in garden-bird abundance, from 46.2 birds per site in 2011 to roughly 30 now.
- Some species rebounded regionally, including a roughly 14 percent rise in blackbird sightings and higher goldcrest counts in forested counties.