Julie, looks like it might be the caterpillar of an Emperor Moth.Joined the trackway which was built for a short lived peat cutting venture, of which you can still see the remains, both of workings and cutting. Not sure about huge caterpillar, assuming some kind of hawk moth, but cannot identify from my book!
Garganey have been on the 2nd viewing platform lagoon lately. Walk the grass footpath north side of the canal for best chance. I think there’s more than one but I keep seeing just singles.Hi, your caterpillar is an emperor moth
Enjoy ham wall , it was fun there today with the usual suspects showing but you will need to be patient for bitterns
regards Howard
Dartmoor is pretty much the only regular place for Cuckoos in Devon these days. Sad but true. Your bird is on the late side of course.Detour gave good siting of buzzard and most surprisingly a cuckoo!