Crookbil or Crookbill: How To spell?
The word Crookbil is misspelled against Crookbill, a noun meaning "A New Zealand plover (Anarhynchus frontalis), remarkable for having the end of the beak abruptly bent to the right."
Crookbill has double 'll' in the end mispronounced as 'l'Remember double 'LL' appears in the end of this word which should not be misspelled with single 'L'
Wrong Spelling:  crookbi-l  Correct Spelling:  crookbi-ll 
Find more incorrect spellings of Crookbill to spell right way.