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Providing evidence to improve practice

Individual study: Use of artificial perches by birds in unburnt and annually burnt tall-grass prairie at Konza Prairie Research Natural Area, Kansas, USA

Published source details

Knodel-Montz J.J. (1981) Use of artificial perches on burned and unburned tallgrass prairie. Wilson Bulletin, 93, 547-548

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

Use perches to increase foraging success Bird Conservation

A controlled study in June-July 1979 in tallgrass prairie at Konza Prairie Research Natural Area, Kansas, USA (Knodel-Montz 1981), found that bird densities in unburned prairie sites were no higher in areas provided with artificial perches than in areas without perches (31 males of all species/ha in both areas). Numbers were higher in a burned area with perches (56 males/ha vs. 27) but not when dickcissel Spiza americana and red-winged blackbird Agelaius phoeniceus (attracted to a stream in the former area) were excluded. Twenty three perches (1.5 and 2 m long wooden stakes) were added to a 35-ha area of annually burned prairie and 17 to an adjacent 25-ha unburned area. A 12-ha area of burnt and a 39 ha unburnt prairie with no artificial perches served as controls. Eight species used 48% of perches in the burned area, compared with 29% used by four species in the unburned area.