We can distinguish chickens, ducklings, birds and kittens from their appearance, behavior and voice.

Chickens and ducklings are both poultry, but there are significant differences in appearance. Chickens have round bodies, short wings, short tails and sharp mouths, while ducklings have flat bodies, long and wide wings, round tails and round mouths. In addition, ducklings have the characteristics of waterfowl and are good at swimming, while chickens are not good at it. The shapes of birds vary from species to species, but they all have feathers, beaks and claws. They can be distinguished by observing their shapes and colors.

Kittens and birds have natural enemies, so their behaviors are different. Kittens like to walk around the house, crawling and scratching with their front paws, while birds move in the breeding box, often pecking at feed or cleaning feathers.

In terms of sound, there are obvious differences between birds and chickens, which can be distinguished by sound. Birds are usually pleasant to the ear, while chickens are harsh. Kittens are mostly meowing, which is easy to distinguish, and ducklings have a shrill voice, which is not hard to hear.

To sum up, if you want to distinguish these small animals, you can observe and analyze them through their appearance, behavior and sound. At the same time, it is also necessary to carry out specific research and understanding according to the characteristics of different varieties.