budgie flew away....again

Yesterday, when Master bring the budgies on a walk, Toby flew away. At first, he flew all the way to somebody's frontyard, but Master manage to catch him, then a few seconds later, Toby flew to a big tree, it was way high up at the tree top, nobody could reach there, Master and his friends tried to call him down, we used Florinstein as a back-up caller, but still, he wouldn't come down. They called him for hours until the sky was darkened, so they gave-up. Master knew it was the right thing to do, but he still won't give-up (even known he already did), he will hang the cage outside everyday until Toby comes back. After a month, if Toby does'nt come back, we'll just let him go.........