The NSW Environment Protection Authority (EPA) suspects the reckless misuse of pesticides is the cause of six recent peacock deaths in Ourimbah, after toxicology reports identified two chemicals ingested by the birds, one of which is commonly used in rat and mice baits.
The EPA was alerted to the death of the peacocks last month, and subsequent testing has revealed they ingested bait-like seeds, as well as the chemicals brodifacoum and sulfotep, which can be found in insecticides.
EPA Executive Director Regulatory Operations Jason Gordon said misusing pesticides is an offence that can carry significant penalties.
"Many chemicals in pesticides are deadly to wildlife and can also have impacts on the surrounding environment, so it is crucial that everyone understands how to use pesticides correctly," Mr Gordon said.
"It appears that multiple pesticides may have been used recklessly in Ourimbah. This is a serious offence, and individuals could face serious fines and potentially stronger legal consequences.
"We encourage anyone with information about this incident or any other suspected pesticide misuse to