This looks like a pretty good one. How tightly does the lid lock on? I like that the cord can be unscrewed and disconnected. It seems like it would work well set on top of a small bucket. The only thing I immediately don't like is that it's not transparent.
It locks pretty tight and can get frozen in place if you get thaw/freeze cycles where it warms up enough to thaw and then hard freezes. I plan my refills around when the weather is warm enough for the top to not freeze in place.
It's sized to perch very well on top of an upside down bucket, which also places it at a pretty good height for standard size birds to access. A upside down flower pot could probably work as well if you want to adjust the height.
The fact that it's not transparent is a bonus for me, I specifically looked for that, as an opaque waterer in my location doesn't grow algae. But yes that does make it hard to see how much water is in it. I'm pretty good at figuring out how full it is by just giving it a lift with the handle - if I have to try to lift it, it's still full enough.