Introduction -- Photo credits -- Loons: Yellow-billed Loon -- Common Loon -- Red-throated Loon -- Pacific Loon -- Waterfowl and crane: Tundra Swan -- Sandhill Crane -- Geese: Parting shots-Geese by ...

Did you know that birds live in a more vibrant world than us? They can see a broader spectrum of colors not perceptible to humans, experts previously told USA TODAY. Their vibrant colors can also help ...