Mae'r trilliw bach tlws yn ymwelydd gardd cyfarwydd sydd i'w weld yn bwydo ar flodau drwy gydol y flwyddyn yn ystod cyfnodau cynnes. Gall oedolion sy'n gaeafu ddod o hyd i fannau…

The Land caddis is the only caddisfly in the UK to spend its entire time on land, with no stage in water. Look in oak leaf litter over winter to see the grainy cases of the larvae, in which they…

The short-eared owl, or 'Shortie', is an unusual owl because it prefers to be out and about in the daytime. It is most easily spotted in winter, when resident birds are joined by…

The elegant little egret was once a rare visitor to our shores, but can now regularly be spotted around the coastline of England and Wales. Look out for its beautiful neck plumes that herald the…

A winter visitor, the well-travelled Bewick's swan is the smallest of our swans. It has more black on its yellow-and-black bill than the whooper swan. Look out for it around Eastern England…

This large green moth rests with its wings spread, so is sometimes mistaken for a butterfly.

Living up to its name, the cherry gall wasp produces growths, or 'galls', on oak leaves that look like red cherries. Inside the gall the larvae of the wasp feed on the host tissues but…

Look out for the feathery leaves of Spiked water-milfoil just below the surface of streams, ditches, lakes and ponds; its red flowers emerge from the water in summer. It provides shelter for a…

Look out for the swallow performing great aerial feats as it catches its insect-prey on the wing. You may also see it perching on a wire, or roosting in a reedbed, as it makes its way back to…

Mae’n hawdd iawn methu’r glas y dorlan trawiadol heb fod yn wyliwr craff iawn! Mae’r aderyn hardd yma’n hawdd ei adnabod diolch i’w liwiau glas llachar a chopr metalig. Mae’n gwibio ar hyd glan yr…

Mae môr-gyllyll yn perthyn i ystifflogod ac octopysau – grŵp o folysgiaid sy’n cael eu hadnabod fel seffalopodau. Efallai eich bod chi wedi gweld y gragen fewnol sialcog, o’r enw asgwrn cyllell,…