Describe the peculiar features of digestive system in a typical bird.

Explanation

Digestive system of birds is formed of : Mouth bounded by a beak for feeding (beak is modified differently in different birds according to their feeding habit and may be for seed crushing, fruit scooping, tearing flesh, nectar sipping, wood chiseling, etc.) no teeth buccal cavity (so cannot crush the food), a food-storing thin and distensible crop, a food-masticating mascular gizzard, a short rectum and a 3-chambered cloaca (for conservation of water),