This morning I found a small bee hive in open space hanging low from a tree here in California, which is one sign they're killer bees. Their wings look smaller than other bees here, but experts say the only way to know for certain is under a microscope. I can't find any info on what people are supposed to do. Is it my responsibility to have them removed and killed or is it okay to let them be? I've told everyone about it so they'll stay clear, and our cat shouldn't be a problem. The only thing I'm concerned about is aiding the spread of killer bees. Also I hear they kill and take over normal honey bee hives.
Ask your local University Cooperative Extension Service for assistance. They will be able to point you in the correct way to go about removing the bees. Identification of what species of bees is a must. They may or may not be "Africanized bees", commonly known as "killer bees". The University Cooperative Extension Service can send a professional to your home for ID purposes and can inform you on the right course of action is needed.
If the bees are healthy honeybees, you will have local bee clubs begging you to let them take the bees off your hands. Simply ask them.