The bird could have a foot injury or other condition that makes it painful to stand on both legs. It should be seen by a veterinarian as soon as possible.
Your budgie's leg band identifies which breeder/breeding club the budgie came from, and the year of its birth.
Some types of birds regularly rest with one leg up, and it means nothing. Sometimes, it can mean that the bird has hurt its leg. If there is no bleeding, swelling or malformation, wait and see whether it heals. It is best to avoid anything that might upset or disturb your budgie, such as causing it to flap around or become unsettled.
If it raised both of them it would fall down. True but birds also sleep on one leg at a time, they can put half their brain to sleep at a time and rest on the 'awake' leg.
That means that the boy really likes her.
Often They will sit on one leg while they are sleeping or just before/ after. If your budgie sleeps with two legs then it is said to be a sign of illness.
When you pick up a budgie, go very, very slowly. Do not grab at the bird. They are very fragile & can be hurt easily.You should wear a light glove, the budgies will bite. Mine do, every time we clean their cage.Be very gentle, or you may break their wing(s) & or leg(s).
how to penetrate long time
Don't you mean jet lag (not leg)? It has to do with being in a new time zone and not being used to it.
Daddy Long Leg
go to the doctor
Just means that your leg had a lack of blood. (Try not to sit on your legs for a long period of time.)
it means you're looking at a very scary spider