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Table 1 Bonferroni post hoc test indicating one-to-one comparisons of the efficacy values of each control structure at reducing the pigeon population index during the management year on the Muckleneuk campus (August 2014–August 2015)

From: Visual deterrents and physical barriers as non-lethal pigeon control on University of South Africa’s Muckleneuk campus

Pigeon control strategy Pigeon control strategy Significance at 95 % confidence
Eagle Eyes™ Fire Flags .144
Eagle Eyes™ Bird spikes .000
Eagle Eyes™ Combination .646
Fire Flags Bird spikes .000
Fire Flags Combination .001
Bird spikes Combination .000