years with many chicks, each cohort (age
group) has its own large pen for the first weeks. Later,
the two or three cohorts live together in one pen. They need time to
work out their pecking order—on
land and in the air—before migration.
The chicks like the wet parts of their pen. Their long legs are good adaptations for
wading in water and walking in tall grass. Their long beaks help them dig for
food. What do they eat?
The chicks must learn to roost in water at night. That way,
they can hear a predator’s splashes
and fly to safety.