Chiruping or Chirruping: How To spell?
The word Chiruping is misspelled against Chirruping, which is present continuous of "Chirrup"
Chirruping has double "rr" is mispronounced as "r"Remember double 'RR' in between the strings chi & uping which should not be misspelled with single 'R'
Wrong Spelling:  chi-r-uping  Correct Spelling:  chi-rr-uping 
Check more misspelled words of Chirruping to spell it correct.