Weasand is the esophagus as offal. The esophagus of birds as offal is typically defined by and referred to as the crop, a large pouch connected to the esophagus prior to the digestive organs.
Deep-fried pork weasand (Spanish: buche) in a burrito, unwrapped; El Paso, Texas
Fried chicken crops (butcherons), Bulacan, Philippines
Offal, also called variety meats, pluck or organ meats, is the internal organs of a butchered animal. Offal may also refer to the by-products of milled grains, such as corn or wheat.
A variety of pâtés (containing liver) on a platter
Animal heads, brains, trotters, and tripe on sale in an Istanbul meat market
Calves' heads in a tripe shop