UK’s warmest spring on record led to rise in songbirds breeding, data shows
Dry and warm 2025 spring gave glimmer of hope for threatened wild birds but many remain in long-term decline
TL;DR
- The warmest and sunniest spring on record in Britain resulted in increased breeding success for 14 songbird species in 2025.
- Species like the chiffchaff, garden warbler, whitethroat, coal tit, blue tit, great tit, and robin showed higher than average breeding successes.
- The dry and warm spring provided favorable conditions, especially for young birds, contrasting sharply with the wet spring of 2024.
- Migratory birds such as chiffchaff, reed warbler, blackcap, garden warbler, and whitethroat had above-average breeding successes.
- Resident birds like coal tit, blue tit, great tit, Cetti’s warbler, long-tailed tit, robin, dunnock, chaffinch, and goldfinch showed statistically significant increases in breeding compared to the five-year average.
- Despite breeding successes, adult numbers of some songbirds declined, attributed to the poor breeding season in 2024.
- Willow warbler and garden warbler numbers recorded in 2025 were the lowest on record.
- Climate breakdown and intensive farming practices are identified as major factors contributing to long-term declines in British wild bird populations.
- Species on the red list of birds of conservation concern include skylark, starling, woodcock, house martin, house sparrow, and swift.