I like to get fruit flies for my colonies, but lately I've ended up with too many. I freeze them, but the girls like them best flash frozen and groggy... not a day old. So I decided to feed some of the colonies I know about around in the Bronx. There is snow on the ground but there are still two places where I know there are slightly active ants. There are a Tetramorium sp. living near one of the power boxes in the courtyard. Then there are the Monomorium sp ants in the park. Only the Tetramorium ants took the flies but they seemed happy. I'll have to try this in the summer when more of the local colonies come out.
There are two big oak trees and each has many colonies, but it's too cold and those ants are sleeping.
I should move to Borneo...