Also noticed one of the tomato plants was missing an awful lot of it's leaves. This one plant was on the inside of the garden against the foundation of the house, so I knew it wasn't due to a deer nibbling.
Upon closer inspection it was very obvious who the culprit was. Leaving his telltale droppings (poop) behind is a dead give away.
He had made his way up and under the plant and was hidden well but not well enough in the end.
With 8 chickens and only one Tomato Horned Worm Caterpillar there was a lot grabbing and running and stealing from one another. In the end several chickens enjoyed a before bedtime snack.