Clutch size and breeding success of pied and collared flycatchers Ficedula spp. in nest-boxes of different sizes
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Published source details
Gustafsson L. & Nilsson S.G. (1985) Clutch size and breeding success of pied and collared flycatchers Ficedula spp. in nest-boxes of different sizes. Ibis, 127, 380-385.
Published source details Gustafsson L. & Nilsson S.G. (1985) Clutch size and breeding success of pied and collared flycatchers Ficedula spp. in nest-boxes of different sizes. Ibis, 127, 380-385.
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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
Three replicated trial in 1982-3 in woodlands in Sweden (Gustafsson & Nilsson 1985), found that pied flycatchers Ficedula hypoleuca and collared flycatchers F. albicollis had significantly larger clutches in larger nest boxes, whereas the effect on fledging success was less clear. A study with four nest box designs in a mixed wood in Kronobergs found that pied flycatchers laid larger clutches in larger nest boxes (6.4 eggs/clutch for 36 clutches in boxes with 57 cm2 basal area; 6.5 eggs/clutch for 62 in 87 cm2; 6.6 eggs/clutch for 16 in 104 cm2 and 7.0 for eight in 125 cm2). Fledging success was lowest in the smallest boxes (51%), highest (79%) in the second smallest and intermediate in the other designs (57% and 62%). Two trials in deciduous woods on Gotland found that collared flycatchers had smaller clutches in small boxes in 1982 only (5.6-5.7 eggs/clutch vs. 6.1-6.2 eggs/clutch). Fledging success was higher in normal boxes in one wood, but higher in smaller boxes in the other wood.
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