Congrats on your new birds!
Usually, if the birds were not hand-raised from hatch date, they are skittish like yours are. Youtube may be of a big help, but these are the basics of gaining trust:
You may want to let your birds settle in first, which will take about a week or two. during this time, dont try to touch them or anything. just change their water, food and tray regularly.
after 2 weeks, they may adjust. this is where you must start interacting; Like sitting near the cage and talking to them as you gently place you hands against the cage walls, or placing millet spray in your hands and try to feed it to them by placing your hand inside the cage slowly. You must repeat this again and again until they are used to it. But remember, never persuade the bird or chase the bird around it's cage. this will break your progress and can cause stress, which can have bad impacts on the bird's overall health.
to get the bird to get used to people, keep the cage in a place were your family or you usually are in. but make sure you put the cage in a corner where at least one side of the cage is facing the wall, this will make them feel secure.
remember that All budgies have different personalities. So some may take many months, maybe years to be tame.
Hope this helps~!
