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Table 1.

Body size corrected body mass (body mass divided by wing length) of the eighth most common songbirds mist-netted in close vicinity to the radar site during spring 2003 and 2004 and autumn 2003

Subalpine warbler Sylvia cantillansOrphean warbler Sylvia hortensisWillow warbler Phylloscopus trochilusReed warbler Acrocephalus scirpaceusGarden warbler Sylvia borinRedstart Phoenicurus phoenicurusNightingale Luscinia megarhynchosSpotted flycatcher Muscicapa striata
Nspring 730 493 305 156 161 126 49 12 
Nautumn 21 12 15 119 18 13 21 10 
AlphaBonferroni 0.0063 0.0063 0.0063 0.0063 0.0063 0.0063 0.0063 0.0063 
P-value 0.0000 0.0039 0.0213 0.5959 0 0.2516 0 0.0517 
2385 1514 1481 8935 455 660 44 30 
Body massspring (g) 10.3±1.5 21.0±2.7 8.5±1.4 11.2±1.5 21.6±3.2 14.8±2.3 23.9±2.9 15.2±2.1 
Body massautumn (g) 8.7±0.9 19.0±1.9 7.7±1.0 10.9±1.2 17.6±1.7 14.2±2.0 18.3±2.3 12.9±1.9 
Subalpine warbler Sylvia cantillansOrphean warbler Sylvia hortensisWillow warbler Phylloscopus trochilusReed warbler Acrocephalus scirpaceusGarden warbler Sylvia borinRedstart Phoenicurus phoenicurusNightingale Luscinia megarhynchosSpotted flycatcher Muscicapa striata
Nspring 730 493 305 156 161 126 49 12 
Nautumn 21 12 15 119 18 13 21 10 
AlphaBonferroni 0.0063 0.0063 0.0063 0.0063 0.0063 0.0063 0.0063 0.0063 
P-value 0.0000 0.0039 0.0213 0.5959 0 0.2516 0 0.0517 
2385 1514 1481 8935 455 660 44 30 
Body massspring (g) 10.3±1.5 21.0±2.7 8.5±1.4 11.2±1.5 21.6±3.2 14.8±2.3 23.9±2.9 15.2±2.1 
Body massautumn (g) 8.7±0.9 19.0±1.9 7.7±1.0 10.9±1.2 17.6±1.7 14.2±2.0 18.3±2.3 12.9±1.9 

We applied multiple tests and consequently, decreased the alpha-level according to the Bonferroni-correction. Alpha-level was 0.05/8=0.006. P-values lower than the Bonferroni-corrected alpha-level; therefore,significant differences between body size corrected body mass between spring and autumn, are in bold. Wilcoxon signed rank tests were applied throughout. Body mass not corrected for body size are given in the two lowest rows

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