Last year I got 2 baby budgies from a friend and I think they’re probably siblings since they came from the same nest. They are both a little over one years old and today i found a small egg at the bottom of their cage. Originally i thought it was a bead and accidentally crushed it only to see that it was an egg. I don’t have a nesting box or anything and I’m super new to this.

What do I do? If they have more eggs, do I keep them? Since they’re siblings,will there be problems? If I can’t keep the eggs, what do I do? What do I do in general? Help please!!!

heres the budgies, im unsure if theyre both female or one is a male. back on is definitely a female. if they are just random breeding season unfertilized eggs, do i throw them away? i heard buying fake eggs might help, but it would take too long for them to arrive.