Friday, 29 July 2016

Another Barn, another Brown long eared bat

Cherryfield Ecology has been doing several barn surveys of late. Most of the time when doing these surveys it is difficult to find the bats because of the vast number of holes, gaps and crevices located in them.

Two surveys on barns recently have given us the opportunity to find brown long eared bats.


The bat in the picture above is typical of how we find brown long eared bats, hanging on the rafters or ridge line of the barn!

Wednesday, 13 July 2016

Brown long eared bats and Barns

Cherryfield Ecology has been undertaking surveys on a barn in Oxfordshire, last night we did the second of three surveys and decided to mist net the bats to see if they were male or female.

Brown long eared bats are known to have small maternity roosts and as we had at least two bats out of the barn on the previous survey we wanted to know if the bats were male or female.

We know they were coming from the main barn door so set - up the net across this so when they emerged they would have no were to go other than the net.



Some time later the brown long eared pictured below was caught. This little chap was male and pretty annoyed at being caught in the net.

After we had checked him over he was released to go and hunt for the evening.

Thursday, 7 July 2016

Bat Roost

Dusk and dawn surveys are part and parcel of the bat survey process, when the day time survey warrants further survey.

The building below shows a roost entrance that is no bigger than 20mm in size, were three species of bat were found in the building. This entrance was used by soprano pipistrelle.


on the face of it this building would be unlikely to house a roost, being built of a solid wall, steel framed beams and asbestos roof, just goes to show that you never can tell were bats will want to roost.