And inside a nearby restaurant, waiters are serving pizza, blissfully unaware of the message on the wall saying the food looks like pigeon droppings. (newscientist.com)
In her landmark book, she documented a litany of evils observed after DDT and other organochlorine insecticides were sprayed on landscapes, rivers, and lawns: dead birds and paralyzed birds, pigeons dropping from the sky, bird nests without eggs and eggs that did not hatch, dead fish and fish swimming in circles, cancers in humans, and a buildup of DDT in the fat of animals and people. (discovermagazine.com)
For example pigeon droppings (representing one causal series) invariably make their way earthward because of the deterministic laws of gravitational attraction. (religion-online.org)