The U.S. Fish and Wildlife Service conducted the following scientific experiment to determine the effects of the rat poison 'diphacinone' on laboratory and wild coyotes -- 'Efficacy and Safety of Diphacinone as a Predacide' "Free-ranging coyotes were captured, treated, and released to determine if efficacy was different from captive animals. Each was equipped with a mortality transmitter and tracked for a minimum of 21 days." "One male free-ranging coyote survived a dose of 2.5 mg/kg and one male captive coyote survived a dose of 1.25 mg/kg. These data indicate high individual variation in the toxic response to diphacinone." "Time to death did not differ between the two groups; that is, free-ranging coyotes averaged 9.6 days (range 8 to 16) and captive animals averaged 10.4 days (range 6 to 17)." "Secondary toxicity tests were conducted with male albino rats fed a meat (muscle tissue) bait for 6 days from captive coyotes killed with diphacinone. The highest diphacinone residue in these baits was 0.5 ppm and four of eight rats that fed upon it died. Hence, there is a secondary hazard to susceptible animals that feed repeatedly on tissue containing at least 0.5-ppm diphacinone." "In most animals the small intestine, liver, or kidney contained more than 0.5 ppm, and these tissues have a higher potential for secondary toxicity than muscle." The Abstract for this study can be read at this link -- https://www.astm.org/DIGITAL_LIBRARY/STP/PAGES/STP35992S.htm HELP US FIND A BETTER WAY! Join us at 'It Takes a Village Kauai' on Facebook and help change this current conservation model from killing to compassion -- https://m.facebook.com/groups/1884230138270651?tsid=0.4089343512020551&source=result