Impossible Socks and it would be on national television if that was the case. They're migrants and therefore insect feeders and also love the hairy caterpillars, which just happen to be about at this time of year (spring), not january or february. Cuckoos only come here to breed and that's all, not to hang around for months. Everything they do coincides with food availability and other birds breeding. I'd say they're here for about six or seven weeks then they become less active and return from whence they came, not even seeing their own young hatch and leave the nest. And there begins another