The Loch Ness Sea Gulls, named Barry, Zo and Shelly Jo by Nessie, are seagulls that reside in Loch Ness.
They are the only friends of Nessie, and she can understand them, and they her. The care about her well-being and are highly suspicious of Plesio when he appears. Since Nessie will not heed their warnings about him, they eventually turn to Teryx for help. She too can understand their cries.
After the Tyrannos and Dinosaucers leave Loch Ness, the gulls presumably stay by Nessie's side, continuing to live a peaceful life in Loch Ness.
The bay gulls confront Plesio, as Nessie looks on.