birdnest on aluminum clothes racks at the balcony of the apartment. is a reservoir of germ

disease bacteria pathogen germ bacterium muck manure droppings excrement line clothes nest smelling odor smell breathe allergy contagious epidemics epidemic aluminum animal apartment asia background balcony biodiversity biology bird breed city rack collar collared dove condominium creature pair pigeon spawn spawning species streptopelia terrace town tranquebarica tropical urban zoology birdnest racks apartment reservoir