I call this the Chickquarium!
Excellent idea for a chick brooder, if you don't mind a little dirt on the floor. The best way to raise friendly chickens that like to interact with you, love to perch on your arm and lap without fear.
Very well written article with plenty of pictures, showing all the important details.
I always wanted to build something like this for ducklings, but they would outgrow this within less than two weeks and also make too much of a mess,