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The natterers bat is a medium sized species, which have a flight that is medium to slow. They tend to fly at a height of below 5 metres but can reach heights of 15 metres. They find their prey from foilage, and tend to roost in old stone buildings with timber beams. This species can be found throughout most of the British isles, which can be seen in the image Below.

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The hibernation survey is believed to be a more accurate measure of population change for this species as the natterers bat switch roosts frequentl. This graph shows a trend of significant increase in Great Britain since 1999.

The graph shows the insmoothed index value for each year (green crosses), the smoothed trend (solid line) and the 95% confidence intervals (dotted lines). The smoothed trend for 2016 is shown as a dashed line to indicate that it is provisional.

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The graph below show the unsmoothed index value for each year (green crosses), the smoothed trend (solid line) and 95% confidence intervals (dotted lines). The smoothed trend for 2016 is shown as a dashed line to indicate that is provisional.

The gradual decline from 2006 in root counts could be due to the conversion of barns and the maintenance and remedial timber treatment of other older buildings.

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The graph below shows the increase in the natterers bat from 1997 when the monitoring of population began with the population being round 92. Within 3 years the population increase to a hundred. There is then a spike from 2003 to 2006 where the population rises from 110 to 160.
This increase could be due to a increase in food supply, if the food supply increases the bats are more likely to survive and reproduce.
It could also be that the that there are less predators for this species which willll promote survival rates.
The increase suggests that there is a higher birth and survival rate.

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If a natterers bat was to be released in hopwood woods they would find it hard to find a roosting habitat as they tend to roost in old buildings which are not available in this area, as Hopwood Hall is currently being refurbished. There are the ruins of the corn mill which my provide a suitable habitat. However bat boxes could be provided to ensure that a habitat is available.

The food source in this area is good enough to promote the bats survival as they eat flies, small moths, caddie flies, lacewings, beetles and spiders.

The predators for natterers bats are the occasional barn owl, they may also be threaten by domestic or feral cats as there are houses located near the woods so this may be a threat.

The flora in is area is dominated by a variety of tree species such as beech and sycamore. The area also has a pond that has a variety of aquatic plants.

The area is an attractive habitat for birds and some species that breed in the area ahave been recorded such as the tawny owl and sparrowhawk. This may cause competition for a food source and habitats. Which will decrease survival rates.

The area is open to the public but the BT’s are nocturnal so this would cause little disturbance to the species

The area attracts mainly birds so they tend to migrate. Once the bird have migrated they food source will increase for the bats encouraging them to survive  and reproduce causing the population to increase.