Early in the movie, there's a scene with Jafar where he's using the other thief to try and enter the cave of wonders, after the giant feline bites down on the unfortunate fellow, the parrot grabs half of the scarab and flys back to Jafar, oddly enough, when he arrives, it's not the same half.
Actually, if you go back and watch the movie properly, it shows him grab both pieces of the scarab.. one in each talon. He then drops both of them into Jafar's hand... Nice try, though.
I think the person has the order incorrect. At the beginning of that scene where Jafar just meets up with the theif, the thief pulls out the half of the beetle (aka Scarab) key. Just before Iago grabs it the half of the key has a round nub in the middle of it, so the other half would have the round indentation so that they would fit together right, like a puzzle? Well, after Iago grabs it and gives it to Jafar, that half has the indentation and the other half that Jafar takes out of his cloak has the round nub.
Didn't follow that, go here that is the correct slip-up entry... http://slipups.com/items/11791.html