In Box3, Chris now has 6 eggs. I wonder how many more she will produce? In our experience, bluetits seem to produce from 6 to 10 eggs each brood, though sometime it is more than this. Our Field Guide suggests the number is normally 7-12,sometimes 5-16, though we have never had more than 12 produced by one female.
The most we have had laid in one nest is 21 in Box2 in 2013, but these were laid by two females!
Quite a lot has happened today. Where do I start?