Cinnabar moth caterpillars on ragworts, Exeter

Cinnabar moth caterpillars on ragworts, Exeter

In pictures taken in early July, cinnabar moth caterpillars crowd on their preferred food plant, a ragwort.

Ragworts have evolved poisons to discourage insects and other animals from eating them. Cinnabar moths in turn evolved to be immune to these poisons, to be able to store them in their own bodies to discourage their predators. That’s handy when their adult form is quite large for a moth, day flying, brightly coloured and generally quite conspicuous.

The moth advertises it’s bad to eat by its warning colouration: black and yellow stripes in the caterpillar, black and scarlet in the adult.

Greater black-backed gull on weir, Exeter

Greater black-backed gull on weir, Exeter

Pictures zooming in on one of the greater black-backed gulls on the weir at Exeter in yesterday’s post. The pictures were all taken from the same vantage point on the footbridge across the river, using the camera in a mobile phone.

Greater black-backed gull on weir, Exeter

Exe weir from Millers Crossing

Exe weir from Millers Crossing

A weir on the River Exe near the centre of Exeter. There’s a pair of greater black-backed gulls at the bottom of the weir. On the left, the outdoor dining area for the Mill on the Exe pub / hotel is a good spot to relax and watch the river with its bird life.

Exe weir from Millers Crossing

Imperial jackdaw grounded

Imperial jackdaw grounded

The jackdaw at the Imperial in Exeter, once it made its survey of the area from the marquee guy rope, flew down to the ground.

It was so close it was almost within reach, so it was wary enough to keep a close eye on me. But that didn’t stop it stalking round in search of crumbs to scavage.