Nesting success of western bluebirds (Sialia mexicana) using nest boxes in vineyard and oak-savannah habitats of California
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Published source details
Fiehler C., Tietje W. & Fields W. (2006) Nesting success of western bluebirds (Sialia mexicana) using nest boxes in vineyard and oak-savannah habitats of California. The Wilson Journal of Ornithology (formerly The Wilson Bulletin), 118, 552-557.
Published source details Fiehler C., Tietje W. & Fields W. (2006) Nesting success of western bluebirds (Sialia mexicana) using nest boxes in vineyard and oak-savannah habitats of California. The Wilson Journal of Ornithology (formerly The Wilson Bulletin), 118, 552-557.
Actions
This study is summarised as evidence for the following.
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Provide artificial nesting sites for songbirds Action Link |
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Provide artificial nesting sites for songbirds
A replicated trial in oak-savannah and vineyards in California, USA (Fiehler et al. 2006), in 2003-4 , found that western bluebirds Sialia mexicana occupied 56-67% of 120 nest boxes with entrance holes large enough to admit bluebirds. Clutches were larger (5.3 eggs/clutch vs. 5.0) and started earlier in vineyards than savannah. Tree swallows Tachycineta bicolor, house wrens Troglodytes aedon, ash-throated flycatchers Myiarchus cinerascens and violet-green swallows Tachycineta thalassina also occupied small numbers of boxes (all <5%).
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