Machair systems present a complex landscape mosaic of habitats comprising both wet and dry areas. They are bordered by beaches and sometimes extensive dune habitats on the seaward side, with wetland areas backed by peatland and heathland habitats on the landward side.

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The Manx shearwater is a medium-sized shearwater in the seabird family Procellariidae. The scientific name of this species records a name shift: Manx shearwaters were called Manks puffins in the 17th century.

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Slow moving sea snails come in many shapes and sizes, though all are equipped with a head and a foot, ad most of us recognize the spiral of a whelk shell. This week, Nature File explores the whelks and other sea snails that are easy to see along the shore.

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The adults are nocturnal, flying from dusk and coming to light, resting by day amongst its foodplants. They feed from honeysuckle (Lonicera) and other tubular flowers on the wing. 

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The Corncrake is a shy, secretive bird, the distinctive "kerrx-kerrx" call of the male often being the only indication of their presence.

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95% of the worlds 20,000 species of bee are solitary rather than social bees. Ireland has over 100 bee species, of which 77 are solitary bees.

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Rays are some of the most beautiful and unique sea creatures on the planet. These fascinating fish come in various shapes and sizes, and are spread across the globe.

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The black poplar may be a native Irish tree, although rare. It has been found especially in the midlands, predominantly in hedgerows in wet farmland near deep water-filled ditches, particularly along the River Shannon.

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The hen harrier is a bird of prey. It breeds in Eurasia. The term "hen harrier" refers to its former habit of preying on free-ranging fowl. It migrates to more southerly areas in winter.

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There is a view that the word 'butterfly' originates from the yellow colour of male Brimstones. The wings of the female are very pale green, almost white, males have yellow-green underwings and yellow upper wings.

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