Oystercatchers are some of my favorite subjects and are one of the most challenging. They require a large amount of patience and persistence. Here are a series of images from last spring and summer. They're a bit more difficult to find in the winter months but recently I've come across a few. They often use those knife-like bills to pry open oysters during low tide. They also feed on other crustaceans as well.
Canon 1D Mark II / 500L / Skimmer II Ground Pod and Hand-held for flights
Mike, the Skimmer Ground Pod has been a lot of fun to work with. It's the perfect tool to support the camera, lens, and Wimberley head when laying down or crawling up on subjects.