With the colder weather and a lower population in the main yard, we decided that we were going to close up the extra space in the hives in order to help to conserve heat during the upcoming winter.
One way to do this is to bring the colonies together into shared space, with common walls. In this way the heat generated by the two colonies work in concert to keep both colonies warm.
Each colony gets its own entrance, which oppose each other in order to minimize drifting between the members of the two colonies.
The other thing we did, and this may be early, but we will see, is to install Mountain Camp feeders on the top (see last weeks post) to help them get through the winter with less than ideal stores.