This dataset contains information about the ringing records of mainly great tits, blue tits, marsh tits and coal tits, and a few other bird species. The data were collected in Wytham woods, Oxfordshire, UK during 2020 and 2021, as part of a long-term population monitoring project on the breeding biology and behaviour of birds. Full details about this dataset can be found at https://doi.org/10.5285/af4c9b5a-fba9-4133-b782-2a2cbc927280
