The Llysdinam Estate of the Dillwyn Venables Llewelyn family lies opposite the village of Newbridge‐
on‐Wye in mid Powys, separated from it by the River Wye. In the early 1900s Sir Charles Dillwyn
Llewellyn set up, on the estate, one of the earliest monitored nest box sites in Wales. Monitoring
continued through his son Sir Michael. When Sir Michael invited what is now Cardiff University to
open a Field Centre at Llysdinam he had established a facility that took over existing, and developed
new, ornithological investigations which have continued, in part, even after the Llysdinam Field Centre
closed in 2010. This report gives a flavour of the range of ornithological topics which have been
undertaken in the mid‐Wales rivers and woodlands over the last half century involving the Llysdinam
Field Centre
