This is the twenty-third annual report of the BTO/JNCC/RSPB Breeding Bird Survey (BBS), containing the population trends of widespread UK breeding bird species during the period 1994–2017.
BBS is the main scheme for monitoring the population changes of the UK’s common breeding birds,
providing an important indicator of the health of the countryside. BBS trends are produced each year for over 110 species, and the results are used widely to set priorities and inform conservation action.
The Breeding Bird Survey Partnership adopted the Waterways Breeding Bird Survey in 2017, previously funded by BTO with financial support from the Environment Agency, and this report now incorporates news, trends and research from this waterways-specific monitoring scheme.