Double-crested Cormorant & Mallards, Laguna Grande Regional Park, Monterey, CA. USA. 8/30/21
The ducks seemed mesmerized by the cormorant rapidly, then slowly flapping its wings nonstop for a few minutes. I initially thought the cormorant was drying its wings after a swim, but it kept flapping. When a another cormorant swam by, it paid no attention, but the ducks did.