@brittarnhild
We have several bird houses around our house and in the garden, and also in the woods surrounding our cabin. In one of them there is a camera. I got it as a Christmas present back in 2015, two weeks after our first grandchild was born (I told my husband that this was something a proper grandma needed). We hung it in the spring, and have been waiting for birds to build a nest and have their chicks there ever since. And this year it is finally going to happen.......hopefully.
A few days ago Mr and Mrs great tit started to fill the bottom of the house with moss, then slowly adding feathers and other soft materials which they could carry in their beaks. They always fly together, but from what I can see, it is the female who is the builder, the male follows her around, almost lika a guard. Mrs great tit is spending her nights in the bird house now, I can watch her via our television screen. She comes in while it is still light, and before going to sleep, she spends several hours working on the nest, forming it, her only tools her beak and her body. So far it a bed for herself, but not long now and she will have quite a few eggs to fill the nest. I have read that great tits can have as many as 18 eggs, as little as 3.
It is very exciting being able to follow the process up close.
And the share it with you.