Pigeons were fed pink metronidazole tablets. According to the introduction of Pet Companion Network, the pigeon cavity may be infected with trichomonas, so you can apply some iodine and then feed metronidazole tablets. Pigeons belong to birds, pigeons, pigeon family and pigeon genus in biological taxonomy. All kinds of domestic pigeons originated from wild cliff pigeons, also known as original pigeons, commonly known as wild pigeons, which are distributed in coastal areas, inhabiting between rocky cliffs, nesting and breeding, enjoying drinking seawater and living in groups.