Noctule Bats are often seen in reasonable light, late in the evening. There have been occasional records of this species but again numbers have declined in recent years. One of the commoner larger species to be seen at the nature reserve with fluctuating numbers from year to year. There have been occasional past records from around the reserve but in recent years sightings have been from the far side of the River Trent on the farmland or close to the New Workings at the Long Eaton end of the reserve. The Grey Squirrel is a common species and has increased in numbers over recent years.
Regular sightings indicate a good population in the area.
This species was once very common but sadly numbers have declined rapidly over the past 20 years and very few if any have been recorded recently. The decline in the population is thought to be partly due to predation by Americam Mink. The presence of this species on the reserve has been proved only by trapping work. Nests of this species have been found in Phragmites on the reserve. At least one animal has been trapped on the reserve.