Is there any way to guess the age of a goose? Josephine is with her new family. L, who's had a pet duck for 7 years, told me she thinks JoJo is a young 6-9 month old goose. I felt like she was young but have nothing to base that on. In certain species of pscittacines, I know the legs will color as well as the texture changes. Is there anything like that with geese? Also, in the two weeks that I had her, she never laid an egg. Is that seasonal as well as age-controlled? This is Josephine on the car trip to meet her new folks. In her new yard. You can sort of see Arnold in the pen behind her. I am not sure of his species.