used crockery and food scraps left behind on table by diners at restaurant. pigeons seen scavenging for food at uncleared table; a

birds bowls cafeteria canteen clean clear coffee coffeeshop collect court crockery diner dining dirty dishes eating finished food foodcourt hawker hygiene hygienic leftovers litter meal mess messy mynah outbreak pigeon pile restaurant return self service shelf shop singapore spilled tables tissue tray uncleared unfinished untidy used utensil utensils waste