Efficacy of bird repellents at deterring North Island robins (Petroica australis longipes) and tomtits (P. macrocephala toitoi) from baits (vol 38, pg 116, 2014)

摘要

The concentrations of anthraquinone on the carrot baits used in the aerial possum control operation at Whareorino should be 0.57 and 0.45 g per kilogram of carrot (not mg).