The bluebird population has been increasing around here. When I first saw one at the feeder two winters ago I read up on them and found that they had a 3 or 4 stage diet. Bugs are their mainstay but in winter they wil eat high protein birdseed.
So I bought a bluebird house and chickadees moved in. Figures. LOL!
That’s good news regarding increase in the population. Many here are putting up Bluebird boxes - I think that is one good reason for the increase.
Chickadees are sweet little birds too! Moved in eh, LOL.