Once again, it's the luminescent-bovine event of the holiday season. Those clopping sounds emanating from the Cornell Dairy Bar's rooftop belong not to reindeer but to Cornell cows.

And that means just one thing: It's time for the Cornell Dairy Bar's fourth annual "Lighting of the Cows" ceremony Monday, Nov. 29, at 3:30 p.m. at the dairy bar on Tower Road on the Cornell University campus. Daryl B. Lund, Cornell's Ronald P. Lynch Dean of the College of Agriculture and Life Sciences, Dennis Miller, chair of Cornell's Department of Food Science, and Kim Bukowski, manager of the Cornell Dairy, will kick off the holiday season by flipping the switch that turns on the display's lights.

The cows, of course, are large, wooden caricatures of dairy cows pulling a Cornell milk tanker. People who pass the rooftop display on Tower Road also will hear the jingle-jingle of bells throughout the holiday season.

Celebrants at the ceremony can enter a drawing for a free bicycle and can savor free scoops of the season's new and old-favorite holiday ice cream flavors from the dairy -- and even go back for seconds. Back by popular demand, the dairy bar will serve White Mint Christmas, a white-chocolate ice cream with a fudge swirl and holiday mint pieces, and Peppermint Chip, a flavor the dairy hasn't made in several years. The dairy bar also will introduce the new flavor Clocktower Pumpkin, which is a combination of pumpkin ice cream, pecans, almonds and molasses