Unless you have a male and female the egg will be infertile. I'm guessing that this is the situation, and she sees no point in brooding an egg that will never hatch.
My Quaker Parrot Laid A Egg But She Will Not Take Care Of The Egg?
Obviously there is a male around, and if this is her first egg, odds are that she isn't going to know how to take care of it. Often enough, it's a trial and error learning process, it may take them several times to mate and successfully hatch an egg. Don't give up.
There are many books and sites online that can help you to better understand this situation, do a little research, couldn't hurt. Hope this helps, good luck.
There are many books and sites online that can help you to better understand this situation, do a little research, couldn't hurt. Hope this helps, good luck.