They're more durable than you think....better leave the lid on or you'll create more problems for those that haven't hatched than any good you could do for the ones that have. The membrane will dry and stick the bird within seconds. Any kids around?, I found it good to just remove one of the windows (keeps temp and humidity better) and let the kids grab the birds out of there as fast as possible and also grab as many empty shells as possible within a minute.
When I get the dry ones out I have to have the top of for about 10 mins.
:eek: ............way too long.
What is the easiest way to do this without affecting the other eggs?
Get a cabinet incubator. I never thought that those styrofoam incubators where very user friendly. I'd think that they would come up with a better design.