"peeling a plover's egg taken from the large nest of moss"
Northern Lapwing
Creative Commons Attribution Share AlikeNorthern Lapwing - Credit: Eddy Van 3000, Flickr

Plovers' eggs are the eggs of the Northern  Lapwing (Vanellus vanellus), also known as the Green Plover or the Peewit. The eggs are laid on open ground.

When cooked, they may be served hot or cold; if the latter, they are often served, as here, on a bed of moss.