The other day, Pink and I were driving by a field in Winter Hill. There’s always at least a few people out there playing soccer. On that late Saturday afternoon, there was only a father and son, but the well-worn grass and dirt was heavily populated by a group of birds, eagerly picking at the grass and paying no mind to the people nearby. I thought back to 6th grade science glass, when we learned about the cattle egret, a beautiful skinny white bird with a long neck, so-named because it follows herds of cattle around to feed off the freshly “tilled” grass. Cattle egrets are also known to follow lawnmowers for the same reason. In Somerville, pigeons take on the role of the egrets, benefiting from a field turned over and over again by the cleats of the local soccer players.