Effect of marking eggs to make them unappealing to egg collectors on the nesting success of peregrine falcons Falco peregrinus and wedge-tailed eagles Aquila audax in the Flinders Ranges, South Australia
This study is summarised as evidence for the following.
Mark eggs to reduce their appeal to egg collectorsAction Link
Mark eggs to reduce their appeal to egg collectors
A small before-and-after study in the Flinders Ranges, South Australia (Olsen et al. 1982), found that twice as many young fledged from five peregrine falcon Falco peregrinus nests (12 young fledged from 16 eggs) and one wedge-tailed eagle Aquila audax nest (one chick from two eggs) in 1980, when eggs were marked with a single line drawn in black, waterproof ink, as in 1979, when no eggs were marked (6/15 and 0/2 fledged respectively).