Ravenous

 Birds are amazingly smart as proven by the Anchorage,AK Costco ravens. They have a feeding system that involves stealing from the grocery carts when the shoppers are loading their supplies into their vehicles. They usually work in teams or small groups where one bird works at distraction while another bird swoops in for the score. Their preferred items are meat and fruits so my recommendation to anyone not wanting to share their groceries is to load those items first. They won't be there much longer as they leave in the spring,not to mention their numbers have been going down the last several years,just be thankful they aren't eagles.