patricklaurie's picture

Hoverfly

Observed: 6th August 2013 By: patricklaurie
hfly
Description:

Large hoverfly sitting at 3,000ft on stones mixed with heather and crowberry. Making an odd droning sound, like a persistent whine. No explanation for this?

Identifications
Species interactions

No interactions present.

Comments

Roger Morris's picture

The noise is vibrating wings

The noise is vibrating wings - presumably to maintain body temperature at this altitude.