Guinea pigs FLOOD! meal time
These are happy petting zoo guinea pigs. The bin is much larger than you can see in the video and they're only there for part of the time. They're very well taken care of and have plenty of space, you just don't get to see it in the video.
These guinea pigs are in a zoo in the park in Kichijoji, Japan (Tokyo). They are petted all day by visitors and then they get to eat dinner. They pour out of the bin in a mob.