The powerful message against cats , showing one about to pounce on a Bower Bird , is strikingly represented in this T-shirt , one of several sold in North Queensland in past years , a collection of which has just surfaced . The campaign against cats is further highlighted by the image of cats in gunsights on two following T-shirts .
A feature of the T-shirts is that they were designed and made in Australia, some in Cairns . They were sold at markets and in shops . A conservative estimate of some years ago put the number of feral cats at 15 million in Australia , killing about 75million birds and other wildlife DAILY .
