Depends on the ducklings - the light, I mean. Einzie was terrified of the dark till she was four years old, so I had those nice solar powered rope lights at one end of their shelter, then when we moved them into the walkout basement, I had a night light for them.
I see orange plastic across the top. Raccoons can rip through that. Are they going to be in the structure, that is raccoon-proof?