Invasive 'flying rats" ! - "நாகணவாய்ப்புள்’ என்றால் என்ன

Have been seeing them nearer home, but not in such great numbers !  there are some views that   birders should not watch birds too keenly, lest they traumatise them and make them do such hideous things as desert their chicks.   Whether they like it or not, birds are stared at    through binoculars and zoom lenses of dslrs  by a bunch of shabbily dressed people who capture their movements and record their presence, giving them newer names !!    However for many birds, it is but common as they have adapted themselves to living in concrete jungles feeding on leftovers and what ...