Flamingo

Flamingos are a type of pink, wading bird in the family  with bills specially adapted to filter-feeding upside-down. They are prevalent in Egypt among other diverse regions around the world.

The Egyptians during the Ptolemaic dynasty found flamingo meat to be particularly savory, with the tongue being regarded as the most succulent portion, a delicacy befitting for royal feasts. Despite this, flamingo tongues were only worth 5 drachma in 48 BCE.

Reference

 * Assassin's Creed: Origins