Cucko or Cuckoo: How To spell?
The word Cucko is misspelled against Cuckoo, a noun meaning "A bird belonging to Cuculus, Coccyzus, and several allied genera, of many species."
Cuckoo has double 'oo' in the end mispronounced as 'o'Remember double 'OO' appears in the end of this word which should not be misspelled with single 'O'
Wrong Spelling:  cuck-o  Correct Spelling:  cuck-oo 
Check more misspelled words of Cuckoo to spell it correct.