Can You Have Identical Twin Birds?

I want fancy diving to contain no more than one summer baths for everyone. And the regular old ducktails, i don't even want baths. I think probably it's which egg hatches first. But allso like, there could be two eggs hatching simultaneous. Is it when the little egg tooth first pops out? Or is it when the chick first gets, like, like, off of the egg completely? That seems complicated to me. Can you have identical twin birds? Because, john, do you know how this happens? I have. A study looked at 200 eggs that contained two embryos and found that only one of the eggs produced a two happy, healthy babies. So it