[hzha]

I have a strange sound notification problem since last week. Every day I get rooster sound notification once or twice at different time, sometimes mid night, sometimes day time. I checked all of my notifications (under Sounds & Notifications from Settings) and my Clock & Alarms, none of them use rooster sound. When the rooster notification sounds, I looked at my phone, there is no any message on the screen. So I have no idea where this notification comes from. Is there any way I can find a full list of notifications I setup, so I can disable this? Any help will be appreciated.