It has happened, doesn't mean it will always happen.
Pulling, or nipping off, pieces to eat is a lot different than dumping a pile of fresh clippings.
Many different circumstances....if birds normally range, what kind of grass, how long the pieces are, and the individual birds themselves. Some...
As long as they have plenty of space and some places to climb up on and/or under......they'll be fine.
I'm betting you're the one who is 'bored' ;).
Yes, copious amounts of fresh grass clipping can cause crop impaction. Can also make moldy mess in the run, depending on what else you've got int...