Posted: 24/05/2015 at 11:46
I have nesting blue tits at the moment but things are a bit unusual and something I certainly haven't experienced before is happening.
In early Spring I noticed that at least 3 tits were building the nest. One of the tits spent most of it's time chasing a third tit around the garden, trying to prevent it putting nesting material in the nest.
Now there are chicks and I am certain that there are at least 3 tits bringing food to the nest. All the birds seem now to be content with this scenario. There may be 4 of them feeding but as all blue tits are the same, and I have only seen the 3 birds queueing up to go into the nest, I can't be sure about that.
Has anyone else heard of this behaviour? Is it unusual or is it common to have shared nesting like this?