Fig. 1

Density of the eight most common grassland bird species at Ingula in eastern South Africa, in relation to grazing. Transects were classified as not grazed (‘none’), lightly grazed (‘light’) and heavily grazed (‘heavy’) based on the three summer surveys carried out from 2006/2008 to 2010/2011. Estimates for density of each species are from Model 3, Table 2. The error bars are standard errors