Incredible Animal Architects and Their Astounding Nests, Burrows, and Homes

The Bank Swallow's Cliffside Nest

The bank swallow, a bird found worldwide, constructs its nest in the side of riverbanks or cliffs. These nests, which are dug out by the swallow using its beak and feet, provide a safe place for the bird to raise its young. The bank swallow's nest is a testament to the bird's remarkable digging skills.