I have a female cockatiel and on occasion she does lay eggs. Usually 2 and she forgets about them quickly and I simply remove them. Just today, Sydney laid another egg (she just laid a few week ago) but this one is really tiny.
Normal Sized Eggs - sorry, nothing to compare it to, but this was her first clutch of eggs.
The egg she just laid today - compared to a penny.
Any thoughts? Do they lay really small eggs on occasion? She's just never laid one this tiny before.