I only expected a general identification of last week's close up
which was correctly identified as
an egg shell by Rob, Adrian, Kris, Ellen D and Ragged Robin. Well done.
To the best of my knowledge it was a Wood Pigeon's egg.
On to the next cropped view
of what?
Think you know? Please leave any guesses in the comments.
They will be revealed, along with the answer, next Monday.