Nest structure and reproductive performance of tree swallows Tachycineta bicolor using smaller versus larger nest boxes, George Reserve Biological Research Station, Michigan, USA
Published source details
Lombardo M. (1994) Nest architecture and reproductive performance in tree swallows (Tachycineta bicolor). The Auk, 111, 814-824
Published source details Lombardo M. (1994) Nest architecture and reproductive performance in tree swallows (Tachycineta bicolor). The Auk, 111, 814-824
This study is summarised as evidence for the following.
Provide artificial nesting sites for songbirdsAction Link
Provide artificial nesting sites for songbirds
A replicated trial in 1988-90 in wetlands in Michigan, USA (Lombardo 1994), found that adult and two year-old female tree swallows Tachycineta bicolor used large and small nest boxes with equal frequency (adults used 27% of large boxes available and 19% of small; two year-olds used 19% and 17% respectively), and that there were no significant differences in reproductive success between nest box types. Boxes were all 19.5 cm tall with a 12.4 cm diameter entrance whole and erected on metal poles (greased to deter mammalian predators). Large boxes had a 14 x 14 cm base, small were 10 x 14 cm.