How long do birds usually incubate their eggs? And, once hatched, how long does it usually take for young birds to fledge from the nest?

The time for incubation varies from species to species but, as a general rule of thumb, it takes most songbirds two weeks to incubate their young and another two weeks before the young are ready to leave the nest. Visit our “Nesting Information” page for specific incubation and fledging periods for many common species. More.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.