3 ms·
> I think there are also documented cases of birds noticing if one of their newly hatched young is missing. Cuckoo success would seem to suggest that as long a
by KineticLensman 8y ago
> I think there are also documented cases of birds noticing if one of their newly hatched young is missing.
Cuckoo success would seem to suggest that as long as there is something in the nest demonstrating the correct 'feed me' cues, the adults will feed it