In Indonesian, kicau means bird chirping, and kicau mania describes the country's devoted community of songbird keepers, who raise species like murai and kacer and enter them in singing contests judged on volume, variety and stamina. Short recordings of these birds circulate widely as ringtones, WhatsApp statuses and video backdrops, passed hand to hand among hobbyists. The exact source of this ten-second clip is undocumented, but its appeal is the same as the hobby itself: a pocket-sized burst of lively birdsong that instantly signals morning, nature and calm.