It is not a issue with age .I have a pair the male is 11/2 years and female is 3 years. The main thing is provide them with safe and comfortable environment and time for them to know each other. If they like each other there will become a couple and build their nest and family.
Based on my experience, the Cygnet can swim in the pond with their mother from the day it hatched and start looking for food in the water. So under nature situation if there is plenty food in the water you practically do not need to do anything. However under the domestic condition it is...
I have no problem mixing swan with geese however if you have overwhelming number of geese's and the food is limited then the swan will have a hard time compete with them means you need to feed them separately. You will need a pond the size is not that important but you will need a depth for them...
I just read a thread about some one wants a pair of baby swan and I have just what you want. A pair of healthy baby black swan .If you have not found one you can contact me. [email protected].
I have a couple of young Australian black swan for sale with 750 a pair pinioned and DNA sexed if you are still interested welcome to contact me buy sending me a private message here on BYC.
You can.leave the eggs for the female to hatch but you have to wait for at least 35 days to find out especially egg has been in the water Ido not know how long if I were you I would to put the egg in the incubator after ten days you can find out by checking the egg for embryo development...