Toby. Who Ate the Cheese? - Toby, #1

Toby the cat is having a picnic and is bringing his favorite food: cheese! But before eating it, he needs to take a nap. Hold on! Something is not right. The cheese! Who ate it? Was it the cow or the bees? Or was it the swan? Maybe it was the bunny rabbit. Or was it someone else? Toby must find the culprit. Perhaps you can help him. The question is: WHO DID IT?