When did the tit start incubating in the nest?
Screencap from webcam Biker, LK forum
Translation Liis
On June 12th the five eggs were still covered with down when the female left the nest, but on the next day the eggs were already not covered
Great tit Rasvatihane Parus major
The cool spring this year made the tits start breeding later but of the reasons the ornithologists will write in more detail.