Ravens.

The Crow Mystery
Researchers for the Massachusetts Turnpike Authority found over 200 dead crows near greater Boston recently, and there was concern that they may have died from Avian Flu. A Bird Pathologist examined the remains of all the crows, and, to everyone's relief, confirmed the problem was definitely NOT Avian Flu. The cause of death appeared to be vehicular impacts.

However, during the detailed analysis it was noted that varying colors of paints appeared on the bird's beaks and claws. By analyzing these paint residues it was determined that 98% of the crows had been killed by impact with trucks, while only 2% were killed by an impact with a car.

MTA then hired an Ornithological Behaviorist to determine if there was a cause for the disproportionate percentages of truck kills versus car kills.

The Ornithological Behaviorist very quickly concluded the cause: when crows eat road kill, they always have a look-out crow in a nearby tree to warn of impending danger.

The scientific conclusion was that while all the lookout crows could say "Cah", none could say "Truck."
 
If I had a dollar for every small bird, I killed when chasing the white lines for a living I would be retired in luxury. As for not so small birds a goose or duck makes a horrible noise on impact. Thank God they didn't go thru the windshield.
 
They’re also really smart and they play. I had one fly down the centre of the road last week, opposite direction, at about 20’ high really hauling ass, he was clearly eyeballing me as he approached and flew straight over the car and continued to hold the middle of the road for as long as I could see him for no good reason except that he could.
I say “he” because the “she” should be at home sitting on her nest this time of the year.
 
A few years ago, they were a rarity here; now they are everywhere. Where poultry and lambing ewes are concerned, they are a menace. The damage they can do, especially to the ewes, can be horrendous. They are quite intelligent, like most of the corvids, but hopefully, the time will come when they can be controlled in areas where they are causing problems.
 
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