llostfain gyddf-felyn y De

== Welsh == === Etymology === Literally, “yellow-throated spinetail of the South”, to contrast with llostfain gyddf-felyn y Gogledd (“yellow-throated spinetail”, literally “yellow-throated spinetail of the North”). === Noun === llostfain gyddf-felyn y De m (plural llostfeinion gyddf-felyn y Gogledd) sulphur-bearded reedhaunter or sulphur-throated spinetail (Limnoctites sulphuriferus syn. Certhiaxis sulphurifera) === Further reading === Cymdeithas Edward Llwyd (2018), “Y Bywiadur”, in Llên natur‎[1], retrieved 27 September 2025.