English: knot
Welsh: pibydd yr aber
Subject: Anifeiliaid
English definition: EU Habitats Directive Annex II Species 
Welsh definition: Rhywogaeth Atodiad II y Gyfarwyddeb Cynefinoedd
English context: Calidris canutus; known as the "red knot" in the USA.
Welsh context: Lluosog: pibyddion yr aber.