While you may wake up several mornings from now, shocked to discover Valentine’s Day is tomorrow and yes it’s too late to book a table, blue tits are punctually searching out safe, warm sites to start building a nest. If you’re the more disorganised type of partner, don’t mention blue tits get ready for breeding months ahead of time. Blue tits are keen on nest boxes. They’re the species most likely to use one and have been known to investigate within minutes of a nest box going up.
Blue tits look for the classic type of nest box with a 25mm entrance hole. They make a small cup-shaped nest within the nest box using moss and wool and can lay a clutch of up to 16 eggs which could mean very busy parents.