Sam is really pissed right now, even though he prepared himself for something to happen, he didn't expect that they would land directly in the middle of a space lock.
If only he was a bit more cautious, he would have appeared in a different location altogether.
It would be a lie if he said that he never expected a group of feathered waiting for him, but he didn't expect them to stay with a formation and everything set up right at the location.
So, even his minor preparations are for naught in that situation.
At this moment, he moved towards the walked feathered rapidly. When they saw him coming on the harbinger, they are shocked. Even though they saw him following their captain, they felt that he wouldn't be coming any time soon, so they are moving leisurely.
Now they don't even have time or strength to fly away as Sam did a number on those wings which is the reason for them to walk now.