क्या लुप्तप्राय घरेलू गौरैया वापसी कर रही है?

क्या लुप्तप्राय घरेलू गौरैया वापसी कर रही है?: House Sparrow, once an integral part of our immediate environment, all but disappeared almost two decades ago. The common bird that lived in the cavities of our houses and polished off our leftover food, today sits on the red list of the endangered species of The International Union for Conservation of Nature (IUCN). Scientific studies