Breeding bird communities on chalk downland in wiltshire

Abstract

Scrub invasion of the chalk grassland at Porton Down is sometimes by hawthorn, occasionally by juniper, and in a few areas by regenerating Scots pines. A mapping census of each of these habitats shows the hawthorn to be the richest in number of species, but the juniper to have the highest density of breeding birds. © Taylor and Francis Group, LLC.