Mr. Bufkin is a farmer on Griffin Rock who owns cows.
When Huxley Prescott announced on television that an alien invasion was imminent, Mr. Bufkin noticed that some of his cows were missing, and naturally assumed they'd been abducted by aliens. He rang Chief Burns to report the abduction, though it later turned out the cows were in Mr. Perkins's corn field.
During a heavy fog, Bufkin rang the emergency services to report a dinosaur lurking around the lab. Surprisingly, he turned out to be right.