This year’s blue tits laid seven eggs which hatched from the 9th May. All seven eggs hatched but, unfortunately, only 5 remain and now the small chicks are being fed regularly by very tired parents.
The chicks have almost trebled in size since they hatched because of the amount of grubs they are demanding (up to 100 feeds per chick per day). We hope the remaining chicks survive to fledge the nest as blue tits have a high mortality rate. This is the smallest brood we have had so hopefully those left will survive this year.
The next stage has started where the chicks start growing feathers as they grow larger. Hopefully we shall see them fledge and leave the nest soon, they may even fledge in the holidays so check the Bird Cam.
Here’s a video from yesterday showing the chicks venturing out from the nest.
This is the fourth year since we put up the nest boxes in 2015. In that time only 2017 had no takers, so we have seen 15 chicks fledge. The first year we had 41 eggs in two boxes but unfortunately both males were caught by birds of prey and the chicks all died because the females could not continue the feeding. The next year was more successful when we had 16 eggs and 9 fledged. The following year, 2017, there were no takers at all, although a pair made a nest and then abandoned it. In 2018 the birds returned and had 10 chicks of which 6 fledged.
The History and the Live Birdcam can be looked at from outside the college by going onto the Bird watch page.