Oh! I asked this question myself when i got my parakeet! You can very easily tell how old your parakeet is, just by looking at the lines on it's head. You must estimate though. There is no exact way of knowing how old your parakeet is unless you watch it hatch. If the black lines on a parakeet's head are very very close to it's beak, it is a very young bird. As the bird gets older, the lines on its head by its beak seem to disappear. if there are lines on the back of a parakeets head,expect it to die soon. Parakeets don't live that long.
Fertile eggs
Yep.
there fat
YOU dont THE BIRDS know
3 weeks of age
8 months
I don't know any animal that is really fussy about where to have sex - including parakeets.
yes anyone can have a parakeet anywhere I'm pretty sure i know people who have parakeets here Yes they do!!
Don't know read a book
you Will know if parakeets love each other because one will regurgitate seeds into the others mouth. usually the male is the one to regurgitate the seeds into the females mouth
PARAKEETS!
NO, they do not have them in the store where I shop.