American Robin and holly berries

Today, following a snowy night, my neighborhood was inundated by Robins. The holly trees were full of birds gorging themselves on the bright red berries. There must have been about 100 of them in the tree outside my office window most of the day, and many others were constantly in motion in the surrounding area. When the snow melted off they spent time probing in the lawns adding some animal protein to their diet.