I read in the Sydney Morning Herald that approximately 200 dead crows had been found near Broken Hill, NSW and there was concern that they may have died from Avian Flu.
They had a Bird Pathologist examine the remains of all the crows and he confirmed, to everyone’s relief, the problem was definitely NOT Avian Flu! However, he determined that 98% of the crows had been killed by impact with trucks, and only 2% were killed by an impact with a car.
The Broken Hill City Council then hired an Ornithological Behaviourist to determine the disproportionate percentages for truck versus car kill. The Ornithological Behaviourist determined the cause very quickly.
When crows eat road kill, they always set up a look-out Crow in a nearby tree to warn of impending danger.
His conclusion was that all the lookout crows could say “cah” but none could say “truck”!