Here is a complete 2022 Chinese set dedicated to pigeon species.

Starting from left to right, the first stamp depicts the hill pigeon (Columba rupestris). It can be found in Asia and it has two subspecies. It feeds on seeds, leaves and occationally snails and other small molluscs.

The snow pigeon (Columba leuconota) is a resident of central Asia and it has two subspecies. It eats seeds, berries, shoots, grain etc.

The common wood pigeon (Columba palumbus) has been already discussed.

Finally, the speckled wood pigeon (Columba hodgsonii) is once more found in Asia. It has no subspecies. It feeds on berries, acorns, fruit, cereals and herbs.