Luca's mom

hello...I'm Luca's mom and I am new to Greyforum. - I have had my 19 year old Grey shortly after she was hatched in an incubator! We know she is a "she" as she lays eggs quite regularly(2 - 3 times a year). For the past eggs, I have just discarded them (one a day) while she is distracted with eating or drinking, but this time, I decided to leave them and see what she does. My research and common sense would tell me that the best time to remove the eggs is when she gets tired of them and ignores them, or tries and push them out of her nesting box. WELL, she has been sitting on her 3 eggs and two wooden balls(from one of her toys) for the past 4 weeks! She allows me to feed her her regular food(by hand) and she is drinking, but is not budging from those eggs. Just recently I moved her food and water dishes down closer to her. She is not getting a lot of exercise and no play time. She acknowledges me by watching me and occasionally lunges at my hand if I am offering her food etc. Now what?Any ideas? Thanks