Relationship Between Grazing and Birds with Particular Reference to Sheep in the British Uplands Fuller R. J. Spiral / 1996 / Engelsk
Multi-scale Relationships Between Vegetation Pattern and Breeding Birds in the Upland Margins (ffridd) of North Wales Conway Greg J. Spiral / 2011 / Engelsk
How Can Research Help Deliver a 'Coherent & Resilient Ecological Network'? Baker David J. Spiral / 2014 / Engelsk
