In 1987 it was proposed to build housing on the site, but after a campaign by local residents it was acquired by Northampton Borough Council and opened as a wildlife park in 1998.

It was named after Charles Bradlaugh, a leading nineteenth century radical and atheist who was MP for Northampton.

Birds include blue tits, chiffchaffs, great spotted woodpeckers, sparrowhawks, redwings and fieldfares.

[3] Hill and Holes is an ancient disused quarry which has grassed ridges and hollows, some of them steeply sloping.

[5] Scrub Field has a diverse selection of wild flowers, including Knautia arvensis and knapweed in higher areas, and bird's-foot trefoil and yellow rattle lower down.