We have a bird box in school that is set up to entice Blue Tits to come and nest in.
Last year we were lucky enough to have 8 eggs hatch. It was interesting to see what they were like and how they grew. This year, we can see some nesting has been going on but no other action as of yet. Click on the link to see the latest goings on.
http://www.richmondhill.luton.sch.uk/interactive/