These are in fact caterpillar nests, constructed by the pine processionary caterpillar (chenille processionnaire) larva, who live in large ‘tents’ and march out at night in single file (hence the name) to feed on the pine needles.

Here in the P-O, we live amongst the vines but some grapes and raisins are believed to have a high toxicity for dogs, and can cause kidney failur