Sitting on the bottom of the cage instead of the perch is a good warning sign. If you see this take them to the vet IMMEDIATELY. Fluffing up, not eating right, nasal discharge, changes in personality are also signs but they are easy to miss.
Parakeets can get sick and diseases.But they have cures for some.
Maybe sometimes not sometimes it does
Fertile eggs
Yep.
there fat
YOU dont THE BIRDS know
I don't know any animal that is really fussy about where to have sex - including parakeets.
8 months
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
that means it might be sick. If the parakeets usual poop is green that might not mean its sick. But if this is like, the first or second time that its had green poop go to a vet!
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