I am not sure why the monkeys would do this. It may be because they are scared of you.
A hen sits on and hatches a clutch of eggs; when they are hatched they are simply a flock.
A group of eggs/chicks laid or hatched together is often referred to as a "hatch", "brood" or "clutch".
Dinosaurs hatched from eggs.
Hatched. Birds are hatched.
they are hatched
Hatched
They are hatched from an egg.
These life forms and be hatched and born alive, mostly hatched though.
They are hatched from eggs.
Flamingos are Hatched
A chicken is hatched in an incubator.
they are hatched