Previous Group: Flightless and Mostly Flightless Next Group: Albatrosses, Shearwaters Loons and Grebes Loons Loons are excellent swimmers with webbed feet set far back on their bodies. They are easy to recognize because they sit low in the water. Loons are mainly fish eaters. Common Loon Pacific Loon Red-throated Loon Yellow-billed Loon Grebes: Clark's Grebe Eared Grebe Horned Grebe Least Grebe Pied-billed Grebe Red-necked Grebe Western Grebe Top of Page