Kirby represented the Manawatu district at Miss Earth New Zealand 2007 where she was crowned the winner on 2 September 2007. First runner up went to Miss Manawatu 2006 winner, Rachel Crofts."Manawatu the best", The Tribune, 10 September 2007. Retrieved 2010-12-08."Teen representing NZ at Miss Earth", Feilding Herald, 6 September 2007. Retrieved 2010-12-08.
