This small collection of papers was gifted to the Borthwick by the Yorkshire Museum in 2017. The museum continues to hold the bat specimens collected by Derek Ungley. 

The collection is not fully catalogued, but can be accessed by appointment through our reading room. 

The archive includes the designs for innovative bat bricks and bat roosts, drawn up by Derek Ungley, bat recording data and correspondence. 

The papers showcase the connection between national approaches to the conservation of bats and the local area, as well as how these programmes connected to the wider study of the environment of Yorkshire. Derek Ungley's correspondence illustrates his connections with the Yorkshire Wildlife Trust and the Yorkshire Naturalists Union.