I don't know the answer, but I can suggest a probable cause for wildlife casualties in Brisbane: cane toads. I recently found one in my backyard in Stafford.

Yes jsand. I agree. I've seen cane toads in the park and in my backyard. I just saw another dead python the other day and nearly brought it home to do an autopsy to see if it had eaten a cane toad. I will with the next one