These include rare and threatened species, such as nightjar, linnet, viviparous lizard and green tiger beetle.
en.wikipedia.org These ffridd areas are of importance for birds, particularly nesting whinchat, tree pipit, yellowhammer, linnet, curlew, and grasshopper warbler.
en.wikipedia.org The vocalisations include short high "pli", and "piieh" and "tshir" calls resembling those of the linnet and the house martin respectively.
en.wikipedia.org Birds such as reed bunting, skylark, meadow pipit, linnet have been recorded and the marsh is also an important site for spring visitors.
en.wikipedia.org