General Description: Common Loon (Gavia immer) are sexually monomorphic water birds with differing winter and summer plumage. Loons might be mistaken for ducks, and they are always found in water. Loons ride low in the water, holding there large head and black bill upright. In breeding plumage, the head and neck band are black or iridescent green, and the back is checkered black and white. The breast is white. In winter plumage, the colors become dull, and most of the neck band is lost, giving them a white-neck appearance. The bottom of the bill angles up, giving the bill an upturned appearance.

Loons go to the north country to breed during summer, so they are winter visitors to Las Vegas. 

Favored Habitat: Large bodies of water.

Where to Find: Large water such as the Henderson Bird Viewing Preserve, Boulder Beach Marina at Lake Mead NRA, and lakes in the Pahranagat Valley.