Cockatiel crop clearing

[BC2]

My cockatiel just had a large pellet shaped something fly out of her beak. It looked like she was clearing her crop but I've never seen such a large chunk of something come out before! It was tan on one side and green on the other, and not liquid.
I'm trying not to freak out. The vet we have access to does not specialize in parrots. Otherwise, she is acting normally-chirping and walking around and interested in what's going on. Is this a cause for concern, or an unusual but harmless thing?

 

[expressmailtome]

Bump.

 

[Lady Jane]

What do you think the object was? Check the cage for any toy parts missing.

 

[Ripshod]

Can you find the object and take some photos? I don't recall ever witnessing anything like this myself.
Maybe a lump of indigestible food, seed husks and such. Or impaction, though it"ll be the first time I've heard of a bird clearing that by themselves.

 

[Davi]

That does sound very unusual for a cockatiel. Do you still have whatever it is that they expelled? Was it organic? Do check the toys in her cage for any loose beads or parts. Hope she's ok and keep us posted please!