Finch egg questions

[Puddles02]

I have a question about finch eggs. I was told that if a male and female finch breed and lay eggs you can boil the eggs and place them back in the cage until the finches get tired of them. I do have concerns though? 1. Do the eggs have a heart beat on day 1 of being laid? 2. Does this distress the parents in a substantial way, is it the same with chickens? Or do the parents really just not get distressed about it?

 

[Shezbug]

Fertilized eggs have no heartbeat until they have been incubated.

 

[Mizzely]

Shez is correct, they have to be incubated to develop. I believe around day 5 is when they get a heartbeat.

Most birds tolerate this just fine. You could also get dummy eggs to swap out so they have them immediately back, but they only need to be boiled for a few minutes, so either way its a pretty short time span.