NAPERVILLE, Ill. (CBS) — People driving in Naperville’s White Eagle subdivision this morning were intrigued by two large birds perched on a rooftop.

“You can tell as you’re driving by. You can clearly see them on the roof. Two of them, sitting there. I don’t know if they’re watching the rain or what, but it was quite interesting.”

That’s Amy Sillito, who took the photo of the vultures.

They are indeed probably just waiting out the rain, says Joel Greenberg, who’s a research associate at the Peggy Notebaert Nature Museum and the Field Museum.

From what Greenberg can tell from the photo, he says they’re turkey vultures, which are here in the Chicago area – any time but the winter – and they’re in greater numbers than they used to be.

“You have a real good chance of seeing them, whereas several years ago – 10 years ago or more – you wouldn’t see them very commonly.”

Greenberg says they’re after roadkill – and chihuahuas have nothing to fear.

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