Tailless
Among all the house sparrows a shiny cowbird
With red-crested cardinal on the left
Washing
Sometimes a puddle of water, other times a puddle of loose ground. Sparrows get dusty by wriggling vigorously on the ground and flattering their wings so that dust forms a cloud to fall on their bodies. It is believed that they do so to control parasites and/or to remove oily substances from their feathers.