Quote: That's great Raz. You probably won't believe this but I bought a sprinkler to turn on at the end of their runs to let them get in and cool off. I would usually turn it on for about 30 min. or just squirt them and give them puddles. Most of the afternoon they birds will go into my coop. My coop and pens are all in the shade.
I have no idea why your ducklings would be going down so suddenly. Maybe you could check with the ladies on the duck thread they are very helpful.