The Natural History of Wales

abundant acid alpine Anglesey autumn Bardsey base-rich Berwyn birds botanists bracken Brecon Brecon Beacons breeding Britain Burrows butterfly buzzards Cader Cader Idris calcicole Cardiff Carneddau century Ceredigion choughs cliffs coast colony common conifers crags Cwm Idwal Dolgellau dunes Dyfi ecology especially estuary Fawr fern fish Flat Holm flora flowers forest Glamorgan gorse grass grassland ground grouse gulls habitats heath heather hedges hill igneous insects island kites lakes lime-rich Llyn lowlands mainly marsh meadow miles moorland moors mosses moth mountain naturalists nature reserves nesting north Wales numbers oakwoods orchid Ordovician peat Pembrokeshire plants Plynlimon puffins rabbits rare rarities razorbills ring ouzel river rocks sand saxifrage screes seabirds Severn sheep Skokholm Skomer slopes Snowdon Snowdonia soils south Wales spring summer summit survive trees uplands valley voles waders warblers Welsh whitebeam wild wildlife winter wood woodland wych elm yellow