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Providing evidence to improve practice

Individual study: Skylark Alauda arvensis densities on set aside in England vary considerably

Published source details

Henderson I.G., Critchley N.R., Cooper J. & Fowbert J.A. (2001) Breeding season responses of Skylarks Alauda arvensis to vegetation structure in set-aside (fallow arable land). Ibis, 143, 317-321


This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.

Provide or retain set-aside areas in farmland Bird Conservation

Another analysis (Henderson et al. 2001) as part of the same study as in Henderson et al. (2000) found that skylark densities on set-aside fields ranged from zero to approximately three birds/ha. A total of 74 set-aside fields (36 rotational and 38 non-rotational) were examined, each from a different farm. The authors’ note that fields with approximately 30% bare earth, straw and litter had the highest densities of skylarks.

Provide or retain set-aside areas in farmland Farmland Conservation

Another analysis (Henderson et al. 2001) as part of the same study as Henderson et al. 2000a, found that skylark Alauda arvensis densities on set-aside fields ranged from zero to approximately 2.7 birds/ha. A total of 74 set-aside fields (36 rotational and 38 non-rotational) were examined, each from a different farm. Fields with approximately 30% bare earth, straw and litter had the highest densities of skylarks.