Ornis Hungarica. vol.11. (2001) p.19-25.
Capture efficiency of small birds by mist nets
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The capture efficiency of 25-mm mesh-size mist nets was evaluated by direct observation in two habitats in a marshland in central Hungary. Bird activity was 0.85 birds/ mist net-h in reedbed and significantly less, 0.28 birds/mist net-h on a wet meadow. Vertical activity as well as capture efficiency was significantly different between the two habitats. Overall, 37% of the birds that hit the net escaped. The middle shelves of 4-shelved net were the most effective in both habitats, with a retaining efficiency of 67-75%. The bottom shelf retained 75% of birds in a pure reedbed but only 33% in a wet meadow area. The top shelves retained fewer birds than the middle ones and there was less between habitat difference (53 vs. 42% efficient in reedbed and wet meadow, respectively).