A 'brancher' is quite literally the time a hawk is likely to venture out of the nest onto the branchers.......Maybe 5-6 weeks roughly for a goshawk.Traditionally we wait longer to pick up a parent reared Goshawk, 8-10 weeks, which is after hard penning (all the blood leaving the new feathers), unless of course the bird is to be imprinted.
....but it's not set in stone & some have experimented with the 'brancher' stage, a bit too early to start training straight away, but normally out of the imprint stage, a few weeks of socialising before the serious stuff start.....
That's the bes