The courtship of the marsh harrier is certainly a sight to behold - wheeling and tumbling through the sky, male and female partners lock talons in mid-air. Look out for this rare bird over…

A scarce but distinctive brown seaweed with curved, funnel-shaped fronds. It is a warmer water species at the northern edge of its range on the south coast of England.

This secretive bird is a member of the rail family, related to coots and moorhens. The breeding call, a rasping rattle, is given mostly at night, sometimes for hours on end.

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.

The song of the Roesel's bush-cricket is very characteristic: long, monotonous and mechanical. It can be heard in rough grassland, scrub and damp meadows in the south of the UK, but it is…

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,…

A recent colonist to South East England, the metallic-green Willow emerald damselfly spends much of its time in the willow and alder trees that overhang ponds, lakes and canals.