Poop forms are secondary to behavior when assessing the current health of a chicken. The pictured poop happens to be within normal ranges, but any one-off poop can be "normal" unless it persists and is connected to lethargic behavior.
Cecal poop is characterized by a chocolate pudding-like consistency, brown to black in color, and by its tremendously revolting smell. And unlike the more numerous urate poops, cecal poops will instantly stain any surface it lands on, especially on your clothes and on cement.