In my understanding of the law the victim doesn't have a say in what criminal charges are filed. That's based on the available evidence and what the police think the person can be charged with. But with certain things the victim can push for charges to be filed or not filed. Like others have said it's probably "petty theft". You can file a civil suit if you want to go down that road. As for the humane society or whatever else; have the animals been harmed? If not then they probably won't care.