Corrected entry: When Ali is discovered in the coring room, as soon as the imam opens the door, all the raptors fly out into the light, then down the shaft. The room they came from was dark and deep (therefore the opened door doesn't shed much light into it), and (as the rest of the movie shows) the raptors react to light and blood, not motion. They had no reason to fly from the safety of the dark room into the dangerous light.
SAZOO1975
1st May 2004
Correction: They were in that room because they followed Ali into that room when he was trying to escape them. They came out as soon as Iman reopens the door.
SAZOO1975