Nest-box uptake and nesting success of eastern bluebirds Sialia sialis on territories provided with one or two nest boxes in Pickens and Anderson counties, South Carolina, USA
Published source details
Plissner J.H. & Gowaty P.A. (1995) Eastern bluebirds are attracted to two-box sites. Wilson Bulletin, 107, 289-295
Published source details Plissner J.H. & Gowaty P.A. (1995) Eastern bluebirds are attracted to two-box sites. Wilson Bulletin, 107, 289-295
This study is summarised as evidence for the following.
Provide artificial nesting sites for songbirdsAction Link
Provide artificial nesting sites for songbirds
A randomised, replicated trial in 1985 in South Carolina, USA (Plissner & Gowaty 1995), found that a 59% of 94 eastern bluebird Sialia sialis nesting attempts were in 23 territories provided with two nest boxes, compared to 41% in 20 territories supplied with a single box. There were no significant differences in the number of eggs, nestlings or fledglings between territory types. When two boxes were used, they were erected less than 24 m apart, allowing a single male to defend both.