Pigeons are auspicious birds. Throughout human history, pigeons have played quite a number of roles, from symbols of gods to sacrificial victims, messengers, pets, food and even war heroes. There are wild pigeons and domestic pigeons. There are two main kinds of wild pigeons: those that inhabit rocks and those that inhabit trees. Domestic pigeons have been cultivated and screened for a long time, including edible pigeons, ornamental pigeons, racing pigeons, military pigeons and experimental pigeons.
Pigeons often can't fly because of injury, lost, illness and other reasons. The pigeons you picked up should belong to the above reasons. I suggest you check the injuries, find a cage for a few days, and let them return to nature after the injuries.