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Providing evidence to improve practice

Individual study: Barn owls Tyto alba show limited use of nest boxes in agricultural land in Arkansas, USA

Published source details

Radley P.M. & Bednarz J.C. (2005) Artificial nest structure use and reproductive success of barn owls in northeastern Arkansas. Journal of Raptor Research, 39, 74-79

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

Provide artificial nesting sites for owls Bird Conservation

A replicated study on four agricultural sites in northeast Arkansas, USA (Radley & Bednarz 2005), found that, in 2001, barn owls Tyto alba nested in four of 48 nest boxes erected in 2000, making up 29% of nests in the area. All occupied boxes were on a single site with a high owl density and were on artificial structures, although boxes were equally distributed on trees and artificial structures. No nest boxes were used in 2000, possibly because they were erected after birds had settled for the year (boxes erected between January and March). Boxes were made from 39 cm diameter PVC piping with the ends blocked (one only partially, leaving half the end as an entrance hole) and drainage holes drilled in. Boxes were placed 2.5-6.8 m above the ground.