I use the blocks so they go away to die...
traps means you have to dispose, or ignore the bodies...
don't use the bait sacks (paper sachets with poison in them) as they don't get touched...
when we moved into our house we heard the scratches... We threw up the blocks and the sachets... The blocks were nibbled on and the sachets were untouched... The scratches ceased and have not returned for 5 years... The last time I was in the roof the sachets were still untouched...
Use these type of bait...
http://www.selleys.com.au/assets/86/...ocks_large.jpg
Don't use these type...
http://www.wapoultryequipment.net.au...arge_image.jpg