My pigeon was probably 7 or 8 mos old when she came to us after living in the wild all summer. I believe it was about a month after we adopted her that she laid the first pair of eggs. Once she felt comfortable in her new home she embarked on the long futile quest to raise a family. (Futile because she has no mate.) She's about 7 yrs old now and her egg production has slowed. For the first few years she laid eggs about every month or so.