Fast food may be the reason dumpster-diving urban crows have higher cholesterol levels than their rural cousins.
That’s the conclusion of a
study published Tuesday in the journal The Condor.
A research team at Hamilton College in New York examined 140 California crows and found that the more urban the bird, the higher its cholesterol.
Next, the team fed McDonald’s cheeseburgers to crows in upstate New York and found their cholesterol was higher than winged counterparts close by that had to fend for themselves.
But the study says it’s not clear if cholesterol was doing the crows any harm.
Survival rates were lower for urban crows than rural ones, but cholesterol wasn’t the culprit, the study says.
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