llostfain gyddf-felyn y Gogledd

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