Nesting birds

I've been checking all the bird sites to try to find the answer, but haven't so far.

They do say that few small birds re-use a nest in the same place, maybe so they don't attract predators, even for a second brood, so maybe it is a different pair if the same is true for nest boxes. I'm not sure great tits even have the same mate two years running - but I'm no expert

They are beautiful, In Spring we watch them building the nest, such hard work flying back and to, both the male and female. We put bird seed out and we have a bird bath which they love. They bring such joy for so little outlay. They bring us so much pleasure.
If you haven’t thought before I hope you consider getting one.

may have found their home. it's so interesting, I even decided to read about these birds