It is now March 2020 and there are still 4 hives alive. The red and white are still strong after the winter, green and blue are weaker, but all have started collecting pollen. The year for these 4 seems to start well.
The swarm from last year, which was yellow did not survive the winter. So we are going into spring with already 4 hives and I have ordered 2 more. So we should hopefully have this year 6 hives and perhaps a one or the other swarm.
Santa was really nice this year and we have now the possibility to measure temperature and humidity in 2 of the hives. One of the next days these 2 sensors will be installed and then I should get more info from the hives, without disturbing it. Also I should detect changes happing inside earlier. I will keep you posted how it goes.