Zinjifrah
Crowing
I used the five gallon bucket method, with two and a half inch ninety degree pvc elbows. Just cut them in half, cut holes in the bucket, insert and silicone in place. They still pull some out, but the bucket's sitting up on bricks and while one's pulling food out the others are clustered around eating it off the bricks so THEY don't have to stick their head in a hole.