Here are two birds who do a major switcheroo as they mature.
The juvenile white ibis above was patrolling the shallows of a drawn down Lake Rodman last weekend.
When he's mature, he'll be a glistening white bird.
Here is a glistening white bird, a juvenile little blue heron.
When he's mature, he'll be a slate blue bird.
I can see the advantage of brown colors as in the young ibis as it is good camo for an inexperienced juvenile while he matures.
I'm not so sure of the survival advantage offered by the white feathers of the little blue.
Very pretty though.
Look at their beaks.
These two were feeding side by side, but NOT competing for food.