Figure 1 . A: A black-capped chickadee (Poecile
atricapillus ) egg in one of the nest boxes set up at Belle Sherman
Elementary in Ithaca, New York, USA. B: An opened nest box to show the
Eastern bluebird (Sialis sialis ) nest built within. C:
Black-capped chickadee nestlings inside a nest box. D: Twelve boxes
decorated by Belle Sherman fifth graders prior to installation on poles
on school grounds.