Kids just got to see a problem with imprinting on a nest site. Just minutes ago we walked the yard with dogs putting birds up for the night. Love Heart's single chick was crying cold and alone on the ground below the nest it's mother was in. Mother is imprinted on nest site and confused about what to do with chick. If we did not intervene, chick would be dead before midnight. Tomorrow we will lower lest and remove cereal box cover so chick can get in. After a couple weeks my daughter will be tasked with raising the nest back up incrementally. We do not have this problem as often when hens nest on ground.
I love it that Love Heart's "mommy" (your DD) is having this opportunity to see problems develop in nature (kind of as a result of human intervention, actually), and then also seeing how to problem-solve to get things back on track. Would be nice if she were to become a rehabilitator of wild things at some point in her future as a result of interest generated by these sorts of experiments in her youth. You don't mention your DS very often, is he still engaged in the experiment?