"Baltic caviare, plover's eggs"

Creative Commons AttributionCaviar - Credit: Mai Le
Consisting of processed, salted, non-fertilized sturgeon eggs, caviar is commercially marketed worldwide as a delicacy and is eaten as a garnish or a spread.

Plover's eggs
Creative Commons AttributionPlover's eggs - Credit: etgeek (Eric), Flickr
A plover is any shore bird of the family Charadriidae, typically having a round head, straight bill, and large pointed wings. Up to the beginning of the 19th century,  plovers' eggs were considered a delicacy; they were generally eaten hard-boiled, as border for mayonnaise salads, or dished up on a rice-stand and garnished with aspic jelly.