Sunday, 2 October 2016

Brown Long-eared Bat...

Despite the recent drop in temperatures during the evenings, the bats around Whitestaunton have continued to be active as they feed up before their winter roost. Over the last week I've recorded Common Pipistrelle, Soprano Pipistrelle  Serotine, Daubenton's, Leisler's, Noctule and Brown Long-eared - all from the garden.

The Noctules have performed particularly well, showing early in the evening and feeding over our garden and the pasture beyond. The Brown Long-eared has been recorded three times this week, unusual considering there have only been two previous records. This is presumably an individual relocating for the winter. The spectrogram below shows its distinctive call with harmonic.

Brown Long-eared Bat echo location calls.

The calls of Brown Long-eared are very quiet and difficult to pick up if more than a few meters away - this one must have been very close! Hopefully another two or three weeks of bat surveying left before winter hibernation.

No comments:

Post a Comment