Tropical Bird That Has a Casque on the Mandible
This page is the CodyCross answer for the clue below from All Things Water, Group 1294, Puzzle 5 (Lobster and Crab).
Question is: Tropical Bird That Has a Casque on the Mandible
and the answer is: HORNBILL
Word Meaning:
HORNBILL — Any of various birds of the family Bucerotidae, with bills resembling a cow's horns. Many species have a casque above the bill, and many imprison their young in a tree.
Definitions from Wiktionary.