NOT a pretty story
Well, it is not a pretty story.... about 200 dead crows near Boston, and there was concern for Avian Flu. They had a Bird Pathologist examine the remains of all the crows, and he confirmed the problem was definitely NOT Avian Flu, to everyone's relief.
However, he determined that 98% of the crows had been killed by impact with trucks, and only 2% were killed by car impact. The city then hired an Ornithological Behaviorist with a grant of 6 million dollars to determine the disproportionate percentages for truck versus car kill.
After a 2 year study, the Ornithological Behaviorist determined the cause. When crows eat road kill, they always post a "look-out crow" in a nearby tree, to warn of impending danger. His conclusion was that the lookout crow could say "Cah", but he could not say "Truck."
Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW