This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Cinnamon bird (Medieval Bestiaries)
The cinnamon bird, also known as Cinnamologus, Cinomolgus, or Cynnamolgus is a mythical creature described in various bestiaries as a giant bird that collected cinnamon to build its nests. According to Herodotus in his The History, the cinnamon bird inhabited Arabia, the only country known to produce cinnamon at the time. The giant cinnamon birds collected the cinnamon sticks from an unknown land where the cinnamon trees grew, and used them to construct their nests, fastened to sheer cliffs.
The Arabians employed a trick to obtain the cinnamon. They cut oxen and other beasts of burden into pieces, laid them near the birds' nests and withdrew to a distance; the birds were then tempted down to carry the chunks of meat back to their nests, where the weight of the carcasses broke them from the cliffs, leaving the Arabians to collect the fallen cinnamon.