pigeon eggs

Congratulations...you may have 2 hens!!

You either have two hens who have found companionship (1 more egg will be laid) with each other, or you have a couple, and some other hen has sneaked another egg in the nest.

Treesa is right about the 2 hens thing. A pair (male/female) only lay 2 eggs at a time.

or one may be an old egg that has not hatched and two are the new ones

All 4 eggs may be fertile.
Even though two females have paired up, they usually get some male companionship on the side.
When it has happened in my lofts, I have had good luck with them raising all 4squabs.
Keith

Keith, i have had that happen also. Dave