1080 poison

Mike & others,

My understanding is that no animal is 'resistant' to 1080 poison, but some 
can tolerate higher doses than others.  From memory, some south west WA 
animals (mammals and reptiles) are up to 30 times more tolerant than the 
introduced animals.  This has evolved as 1080 naturally occurs in their 
environment.  Hence the amount of 1080 in the baits can be controlled to 
kill the introduced animals, without killing the native animals.

I don't know if Australian Magpies (or any other birds such as currawongs) 
are more tolerant of 1080.  I would think that it is possible, but 
probably only in the areas where 1080 occurs naturally?  Does anyone know 
exactly?

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