Charcoal engraving on board

30 x 46cm

Original SOLD

The common Barn owl has remarkably acute hearing because of its large and characteristic facial disk which acts like a radar dish and also because of its asymmetric ears which helps discriminate position of a sound very easily. Its huge eyes are typically those of an exclusive night hunter with large number of light-collecting rods in the retina. Though these rods collect light very effectively there are few cone cells which discriminate colour and therefore these owls see mostly in monochrome.