Source : Webster's Revised Unabridged Dictionary (1913)

Sheldafle \Sheld"a*fle\, Sheldaple \Sheld"a*ple\, n. [Perhaps
   for sheld dapple. Cf. {Sheldrake}.] (Zo["o]l.)
   A chaffinch. [Written also {sheldapple}, and {shellapple}.]