The saddest thing about this time of year is the lack of ants. :(
I have my pet colony, (carpenters) and the ants at the museum. (honeypots and leafcutters) ... but I never see any ants in the park, or on the sidewalk or trees.
It's so lonely.
Have you wondered where all the ants go?
In winter ants like my carpenters enter "diapause" which is similar to hibernation in mammals. They prepare their bodies for cold and move slowly. Deep in the earth and in the trees they rest in a big pile.