What is this?

During every autumn or winter months these little white dumps appear on my lawn but what are they?  Some sort of fungus or a vomit by bird or wild animal?  Does anyone know - I would so appreciate an identification!
Update:  Houseonahill6 has given me the answer!

Supermarket shop this afternoon and a brilliant supper of Sea Bass followed by raspberries.

Extra photo:  a flat cloud