yaffler is a form of:

Yaffle



ENGLISH MEANING
noun
1.
The European green woodpecker (Picus, Genius, viridis). It is noted for its loud laughlike note. Called also eccle, hewhole, highhoe, laughing bird, popinjay, rain bird, yaffil, yaffler, yaffingale, yappingale, yackel, and woodhack.