BTO Preliminary report on 2017 breeding season

The primary aim of BTO surveys is to monitor changes in the health of Britain’s birds, tracking declines and increases via the BTO/JNCC/RSPB Breeding Bird Survey and exploring the factors driving them through bird ringing and nest recording. The long-term trends in abundance, survival and breeding success generated by these schemes are presented on the BirdTrends webpages.

This report provides a preliminary assessment of the 2017 breeding season in terms of population sizes and breeding success, comparing this year’s results to the averages recorded over the previous five seasons.

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