Ever seen a swan or another water bird swimming with one leg sticking out of the water? It might look odd, but it’s not an injury. While no one knows for sure why they do it, the main theories are that it helps regulate their body temperature or absorb vitamin D. Either way, it’s normal behaviour and nothing to worry about! | Wildlife Rescue Queensland

Mute Swan Identification, All About Birds, Cornell Lab of Ornithology

Tundra Swan Identification, All About Birds, Cornell Lab of Ornithology

Trumpeter Swan Identification, All About Birds, Cornell Lab of Ornithology