Individual study: Tree swallows Tachycineta bicolor prefer east- and south-facing nest boxes in the early breeding season, Amherst, Massachusetts, USA
Ardia D.R., Pérez J.H. & Clotfelter E.D. (2006) Nest box orientation affects internal temperature and nest site selection by tree swallows. Journal of Field Ornithology, 77, 339-344
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 study in open farmland in Massachusetts, USA (Ardia et al. 2006), found that tree swallows Tachycineta bicolor occupied 55% of 153 nest boxes provided in 2004, with an average of five eggs/clutch. Swallows preferentially selected east- and south-facing nest boxes before June, but used nest boxes based on availability later in the summer. East- and south- facing boxes heated up faster in the morning, but only early in the breeding season.