If it's a hard lump & feels "grainy" then she just ate well. Should be down by morning. If it's soft, and not down by morning, she might have a "sour crop". Lots of posts around on how to fix that, if that's it.
Ya I think thats what it was! When I saw it, I felt it and was a bit hard. Thats what made me worry a bit but I just went back out and it is soft and spongy! So I felt up the rest of the hens and felt the same. I was picking the them all up to put up for the night and panic a bit, thanks