If you are looking for data on how long it takes a bird bone to heal if it is broken- there are many variables- 2 weeks or longer (to eternity) . It depends on which bone is broken, how many pieces, whether the pieces are anywhere near each other, whether there is infection present, whether there is an adequate blood supply, whether your wrap actually stabilized the break, age of bird, health of bird ect.
Options:
1) have it x-rayed, then you will know whether it is healed or not- and if it healed well or badly
2) take of the wrap and see if it hangs down anymore. If it doesn't, it is healed. If it does- it is not healed. If it not healed- then your options change to
1) get professional help and get it x-rayed and do what is recommended- rewrap vs surgery vs amputate ect
2) do it yourself again, and leave it again for a few more weeks.