Our beach is gravel/rocks, but I suppose there's enough food around for them to eat... small fish, critters, etc. My uncle, he'll set-up in a marsh somewhere and sit in a high-tech camo bird hide/blind ALL DAY LONG with a TOTL Canon body and an 800mm lens. LOL. He gets some great shots! But I am too short on patience. It's probably like the golf channel or American Sportsman in the old days... everyone whispers! LOL. I like being outdoors with the camera... getting some fun shots as I walk along and taking short photo breaks (my family teases me and says I'm slowing them down). But birders have more patience than I do... and I can also see/appreciate that the rewards are high when you take the time... and wait... and get something nice. Plus the difficulty to master the technique... focus point, tight framing, SS/DOF tradeoffs for stopping the action, anticipating movement, changing light as the target moves, etc. Thank goodness for the nice cameras we have nowadays and and free digital film. That means we can afford to experiment and quickly see the results (compared to "the good 'ol days" where you'd have to wait a week and PAY to see how badly you messed-up).

Kudos on the duck shot.