Chwiliwch am yr adar tal, gydag edrychiad cynhanes yma, yn sefyll yn dal fel delwau ar lan pyllau a llynnoedd, yn meddwl am eu pryd bwyd nesaf.

Large scale drainage in the UK has seen a massive reduction in the range of this sensitive aquatic plant which now only occurs in around 50 sites in England.

This glossy wading bird is a scarce visitor to the UK, though records have become more common in recent decades.

Found on rocky shores around the UK, Chitons are a kind of mollusc identifiable by their characteristic coat-of-mail shells.

Tansy is an aromatic plant of rough grassland, riverbanks and verges that has button-like, yellow flower heads. It is the main foodplant of the rare Tansy Beetle, now found at only two places in…

Once widespread, this attractive plant has declined as a result of modern agricultural practices and is now only found in four sites in South East England.

Bladder campion is so-called for the bladder-like bulge that sites just behind the five-petalled flower - this is actually the fused sepals. Look for it on grasslands, farmland and along hedgerows…

The rare heath fritillary was on the brink of extinction in the 1970s, but conservation action turned its fortunes around. It is still confined to a small number of sites in the south of England,…