it's a very short tupperware container. I don't think they would fit in there with the lid on. It's tall enough for their bills to get in, but not enough for their bodies at all - the holes are not large enough for them to slip inside either.

I will definitely have to change it as they get bigger. I wanted it to be short enough for them to reach it (It's about an inch tall, and maybe 5x5 wide, it has 8 holes around the edges, and no hole in the middle. I didn't want anyone of them to try to drink from the middle and get stuck.