hoactzin

Noun

hoatzin (plural hoatzins)

1. A bird of the species Opisthocomus hoazin of the order Opisthocomiformes, with claws on the wing fingers of the juvenile and an enlarged crop used as a rumen.
   • Hoatzins are large birds — at about twenty-six inches from head to tail, they are much larger than Archaeopteryx — with a yellowish chest, brown striped back, and a long narrow tail (Figure 53). Hoatzins are unusual in several ways, one of which is that hatchling hoatzins have claws on their wings....1999, Pat Shipman, Taking Wing: Archaeopteryx and the Evolution of Bird Flight, page 196

   Synonyms:

   stinkbird