You will need 2 main things to build it a foldable music stand and a bird perch (I will leave a link on the bottom for where you could buy them)
Step 1 . Assemble the whole stand the way it is supposed be assembled except for the bookplate
Step 2 . Unfold the bookplate and put it on upside down
Step 3 . Glue the bird perch (gorilla or super glue is the best, but don't put to much on where the bird could manage to ingest some) on the top of it.
http://www.amazon.com/West-Music-Wire-S ... usic+stand
http://www.amazon.com/Perch-Birds-inch- ... bird+perch