Casowary or Cassowary: How To spell?
The word Casowary is misspelled against Cassowary, a noun meaning "A large bird, of the genus Casuarius, found in the east Indies. It is smaller and stouter than the ostrich. Its head is armed with a kind of helmet of horny substance, consisting of plates overlapping each other, and it has a group of long sharp spines on each wing which are used as defensive organs. It is a shy bird, and runs with great rapidity. Other species inhabit New Guinea, Australia, etc."
Cassowary has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings ca & owary which should not be misspelled with single 'S'
Wrong Spelling:  ca-s-owary  Correct Spelling:  ca-ss-owary 
Find more incorrect spellings of Cassowary to spell right way.