I found these four critters this morning on my parsley. They look like hornworms but are of different coloring, also smaller than most hornworms I've found on tomatos.
I put them in a planter in the shade with the sprig of parsley they were on to try and figure out if I should feed them to the birds or not. I went out for 3 hrs and when I returned, they had just about demolished all that parsley.
So, obviously I don't want them in my garden, but I don't want to do anything too drastic until I know exactly what they are (and what they become).
Any help would be greatly appreciated. This is my first attempt at uploading images. I hope I'm doing it right.