Lesson
One: A Safe Roost at Night
A big pile
of oyster shells is just below the water’s surface in one of the two large
ponds inside the pen. This human-made ridge (or "oyster bar") is a
safe place in the water. Do you see the plastic crane standing stiffly at the
end
of
the
bar?
It is
a role
model. After the young cranes take bedtime baths,
the costumed handler moves onto the oyster bar and the cranes follow. One by
one they claim their night’s roosting space on the oyster-shell
bar. This is their first lesson in using in the water as a safety defense. To
reach the cranes, any predator would need to splash through the water surrounding
the roosting site. Roosting in water is like having liquid alarm system. When
it's almost dark, they do the "Harley kick." Each
crane jerks one leg as though starting a motorcycle, then tucks the leg up and
goes to sleep. The costumed handler quietly leaves them under the starlight. |