Correct spelling for the English word "Sheldafle" is [ʃˈɛldafə͡l], [ʃˈɛldafəl], [ʃ_ˈɛ_l_d_a_f_əl] (IPA phonetic alphabet).
The chaffinch.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.