Anything is possible if you have the materials and tools to do it.
The problem with making such item from glass poses a few obstacles. You will need to make it non-leaking. You will have to figure out ways to be careful not to break glass. You will also need to round the exposed edges to prevent sharp edge class cuts. All this can certainly be done, but is effort intensive.
If I wanted a long shallow waterer for small birds like quail, I would opt for a length of 4 inch PVC pipe cut lengthwise in half. You can easily seal off the ends with a cap also cut in half. Easily mounted and secured with screws to wherever you wanted it placed. Can also be easily glued to a board to be movable, and free-standing.
Plastic is easy to clean.
WISHING YOU BEST,,,,,,,,,,,,,,,,,,,,,,,,,,,and