you should look it up online and a whole bunch of pictures will come up.
female
So the male Parakeet has a blueish cere, and the female has a pinkish brown cere. Here is a bad picture of what it kinda looks like
Maybe
sometimes
Depends on the male if it usually goes in the nest then yes
The female and male parakeet do a cloaca kiss and make a baby bird deedadee
you can leave them together all the time
Female parakeet may be aggressive and sighted the bird as a territory threat or vice-versa. Female birds become anxious if they have eggs
I don't think so. I read that adult female parakeets noses are brown and that adult male parakeets noses are blue. But, young female parakeet's noses are "bluish" and a young male parakeet's nose is pink.
Probably when they are very affectionate with one another or you have baby parakeets.
Talk about your serious, Erection
They can but i still think that the rat would attack the parakeet the parakeet would obviously poke its eyes out