Sparrow feeding their chicks in the nest

sparrows are the most common birds, but most of us don't know how they grew up. we install a camera to record and found that sparrow are smart birds , very caring and cute, but surprisingly we found these birds are very careful about the cleanliness. chicks poop outside the nest and parents remove their poop quickly. here is a video of sparrow feeding their chicks in the nest, watch and enjoy , but don't forget to click subscribe button.