Individual study: Nesting success of house wrens Troglodytes aedon using milk-carton nest boxes in a suburban park in Indianapolis, Indiana, USA
Dailey T.B. (2003) Nest box use and nesting success of house wrens (Troglodytes aedon) in a midwestern wetland park. Ohio Journal of Science, 103, 25-28
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 songbirds
A replicated trial in 2000 in a suburban wetland park in Indiana, USA (Dailey 2003), found that 37% of 67 milk-carton nest boxes were occupied by house wrens Troglodytes aedon (24 boxes) and Carolina chickadees Poecile carolinensis (one box). Only 23% of wrens and no chickadees successfully fledged young, with failures due to predation, mostly by mammals that ripped open the cardboard nest boxes. Wrens preferentially nested in boxes on small trees, possibly as a defence against climbing predators. No prothonotary warblers Protonotaria citrea, the target species of the study, nested in any of the boxes.