Assertion: whooper swan | /r/HasProperty | noted
Facets:
Source sentences:
text: However, the whooper swan (Cygnus cygnus), a winter visitor to parts of the eastern Mediterranean, does possess a 'bugling' call, and has been noted for issuing a drawn-out series of notes as its lungs collapse upon expiry, both being a consequence of an additional tracheal loop within its sternum.