Greater Flamingos usually incubate their eggs for 26-30 days (average about 28 days) between laying and hatching. The other flamingo species (there are 6 species of flamingo in the world) are similar. (I used to work at a zoo as a flamingo keeper/breeder).
it can sit on it about 20 days
A flamingo egg is white with a bit of gray.
You do not have to let your Egg Strata sit overnight. As long as you give the egg enough time to be absorbed that is fine. Leaving it to sit for 20 minutes should be enough.
10 months
You sit on it and wait a long time.
until the egg is ready to hatch. : p
2 years?
Around three weeks.
After the penguin egg is laid, the male will sit on the egg while the females leave to find food. The males will sit on the eggs for a full two months before the egg hatches.
From eggs, like all birds.
drink water , and sit in the sun
It will sit until the others all hatch and leave any that don't hatch.