dpjacques

i'm a new member to the grey forum...i have an african grey (bingo) who is 11 years old...i've had him since his birth on 5/5/89...heretofore i had been told, and assumed, that 'he' was male when, lo and behold, yesterday...'she' laid an egg. my questions are: is this unusual? how often should i now expect a similar occurrence? should i worry?