Conservation Evidence strives to be as useful to conservationists as possible. Please take our survey to help the team improve our resource.

Providing evidence to improve practice

Individual study: Provision of nest boxes for European rollers Coracias garrulus in agricultural habitats of the Serena region of Extremadura, Spain

Published source details

Avilés J.M. & Parejo D. (2004) Farming practices and roller Coracias garrulus conservation in south-west Spain. Bird Conservation International, 14, 173-181


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 rollers Bird Conservation

A before-and-after study in agricultural habitats in Extramadura, Spain (Avilés & Parejo 2004), found that the number of European rollers Coracias garrulus using artificial nest boxes increased from 29 in 1988 (76% of the 38 boxes available) to 350 in 1991 (55% of 641 available boxes). Nest boxes use varied with habitat: from 68% use in unwooded pasture (256 boxes available) to only 34% in cereal fields with holm oaks (32 boxes). Nest boxes were the same design as in Avilés et al. 2000.