No. First, they may be the same sex. Even if they are male and female, they have to want to. Birds don't mate just because they are the only ones available, They choose their mate for whatever reason they do. Pretty much like we do.
You can not. They have to choose to be mates for what the other one does. Kinda like we do. Also, they might be the same gender.
Yes, yes they will.
Parakeets do not mate for life. They are monogamous during the breeding season, but they may choose different mates in subsequent seasons.
Yep.
If they have a mate, yes, unless their human purposely separates them from their mate, the mate dies, etc.
a box
They mate or do a jig then they lay the eggs and sit on them
They mate.
yes withouth a doubt
budgies and parakeets dont mate they do not need a male to lay an egg so the answer is no season
I don't know any animal that is really fussy about where to have sex - including parakeets.
You shouldn't because the male will mate with one of them and parakeets hate being lonely and the other one will be left out....