What Does The Sound Mean?

[Oreo&Coco]

Few days ago, out of the blue one of my piggies making a "beep beep beep...." (in short interval) sound in the middle of the day. It sounds like a smoke detector. The sound last for almost one minute. The piggy looks healthy and doesn't seem to be in pain or something. Does anyone know what the sound mean? Thanks for sharing.

 

[Swissgreys]

Is it possible to try and record the sound?

 

[Oreo&Coco]

Is it possible to try and record the sound?

Yes, will do that next time. This is the first time since we have both piggies for 4 years now. So don't know when Oreo will do it again. Hahaha...