Where I live near San Francisco and San Pablo Bays, grebes are a very common sight. Generally, though, its Western Grebes that are seen in pretty good numbers. A much less common sight are Clark's Grebes like those seen in these photos. Grebes can be a challenge to photograph because they don't stay on the surface long. Like cormorants, they dive underwater for what can seem like minutes and there's no telling where they'll resurface. But there's a good chance it will be out of camera range when they do.