"Brownfield sites are best described as derelict and disused industrial or commercial land. Areas of abandoned factories and old railway lines are becoming a refuge for a growing number of species. Once all the human activity has died down, wildlife starts to move back into these undisturbed areas. Brownfield sites can contain a mosaic of different habitats and niches, providing opportunities for a wide variety of animals and insects, from toads and snakes to dragonflies and rare bees. Plants can also thrive on the poor soils, from purple rosebay willowherb to yellow groundsels and dandelions."Excerpts from Springwatch and Bill Oddie Goes Wild ensue.
Nature The habitats section of the BBC Nature website, collects together clips from programmes depending on which deserts, mountains, forests and oceans, even brownfield land: