Miscellaneous residue levels in birds
Several samples of different species of birds, and eggs, from a wide range of localities were collected and analysed during the early to mid 1970’s. Samples ranged from Ospreys at Shark Bay to Owls at Manurah. Almost all samples contained low levels of organochlorine insecticides, up to a maximum of 60 mg/kg of DDT in an Owl from Lake Argyle and 14 mg/kg of dieldrin in a Mudlark from Karratha (this sample taken in 1983).
P42 Monitoring Pesticides – A Review. A Report to the Environmental Protection Authority by Peter A Rutherford. December 1989