If the band at the top of the beaks are the same then chances are good they are the same.
Parakeets have a beak and the thing above it which is called the cere.
a cere
Right above its beak.
no, I have budgies/parakeets and have never seen that, and from what I've seen it's not possible.
That's normal. A parakeet's cere usually changes color after a year which is how you determine its gender. If I'm answering your question right, the "beak" you are refering to is the fleshy part above the beak. If the beak (yellow-ish-orange-ish keratin area) is changing color, you should take him/her to the vet.
Take them to the vet. Feel better!
Parakeets do not have teeth, they have a beak and a tongue.
If a parakeet's beak is blue, it's a boy. If it's red/pinkish, It's a girl!
Parakeets do not become pregnant, they lay eggs. Females have a pink or tan color nostril band.
NO they definitely can not. There beaks are way to small and fragile. The beak would break on contact.
A little further back from where the beak hinges. It is just a hole on each side of the head
Parakeets breath through their cere, The small but cute set of openings located above their beak.