Unfertilised eggs

by Bev
(United Kingdom)

My 11 year old blue crowned conure Polly is trying to hatch an unfertilised egg, she laid two for the first time last year and I removed them after a couple of days as she was exhausted and not eating or drinking properly, I was very watchful in case she suffered any depression, but she seemed ok.

Now a year later she laid another - I removed it the day after then she laid another, which I also removed, now she's laid a 3rd and she is exhausted and I'm not sure if I'm doing the right thing.

Should I wait until she abandons the egg? I am just worried about her not eating and drinking enough and looking exhausted although her plumage seems pristine, but her poop is dryer than normal and sometimes looser than normal. She resumes normal preening, eating and drinking after the eggs have been removed, I just feel terrible taking them.

Thank you for any urgent advice you can give, Bev