finches eggs??

a friend of mines gave me some finches a few weeks ago. Today i was cleaning the cage and i found 4 eggs. 1 broken and the other three complete. but i didnt have a nest house so they were just in the botton of the cage. i have 1 male and 2 females birds. how do i know which female bird had eggs and how do i make sure the eggs hatch. and also how long they take to lay more eggs? thanks
Answers:
You should take the eggs that you found on the floor out of the cage and buy your birds a nesting box. The female that is laying the eggs will look swollen near her bottom before she lays the egg. I have two female finches who each go through egg laying cycles even though theres no male in the cage. It seems like they lay an egg about every other day, but the eggs never hatch.

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Hi you might not find out which feamle it is as some will leave the eggs if they are on the floor of a cage.try getting a proper finch nesting box %26 take the eggs you have away %26 they should breed again.Regards Jake