Thorntil or Thorntail: How To spell?

The word Thorntil is misspelled against Thorntail, a noun meaning "A beautiful South American humming bird (Gouldia Popelairii), having the six outer tail feathers long, slender, and pointed. The head is ornamented with a long, pointed crest."

Word contains consecutive vowels 'AI' in between alphabets thornt & l is misspelled as 'I'
Wrong Spelling:  thornt-i-l 
Correct Spelling:  thornt-ai-l 
Find more incorrect spellings of Thorntail to spell right way.

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