'After the crop, a bird has this organ, a part of the digestive system, to grind up those tough seeds'
Gizzard
DIGESTION: After the crop, a bird has this organ, a part of the digestive system, to grind up those tough seeds
After the crop, a bird has this organ, a part of the digestive system, to grind up those tough seeds
After the crop, a bird has this organ, a part of the digestive system, to grind up those tough seeds
DIGESTION
Gizzard
DIGESTION