If you’ve ever lived in a situation where your household garbage had to be put in a Dumpster trash receptacle, you may have had the funny (but frightening) experience of opening the door and having a cat (or several) jump out wildly. The cat was probably scavenging for food inside, and while he might have been someone’s pet, he was most likely a feral cat dining at one of his favorite feeding sites.
Humans throw away a lot of high-protein garbage, and feral cats (especially in urban areas) find any open garbage container to be a great source of food. Feral cats still hunt for a lot of their food, of course, but much of it is supplied by wasteful humans’ table scraps.