A brilliant idea!

Okay, so we are having lunch in the "spectator village" which has a great selection of food concessions and a picnic table area at which to eat. Here comes this enormous eagle swooping overhead and it lands on a post nearby. Then it makes another pass over the tables and lands on a nearby rooftop.

After lunch we walked around and found a little corral where the eagles--two of them--were headquartered for the Open. They, and their handlers, were hired to keep the picnic area free from seagulls and other pesky birds who would take advantage of all the good food in the area. By swooping around from time to time, they sent the seagulls a pretty strong message: buzz off!