First, the identification of male and female pigeon eggs and embryos. After five to seven days of incubation, under the light, the bloodshot on both sides of the embryonic basal axis is symmetrical, and the male pigeon embryo is cobweb-like. If the bloodshot on both sides of the embryo is asymmetrical, one side is long and many, and the other side is short and short, most of them are female pigeon embryos. Second, the identification of male and female squab. Four to six days after the squab is hatched, the anus is slightly open. Viewed from the side, if the upper edge of anus covers the lower edge, the lower edge is shorter, and the upper edge is slightly prominent as a male homing pigeon; If the anus is prominent, the upper edge is short, and the lower edge is covered with the upper edge for the female homing pigeon. After seven days of age, feathers grow near the anus, which is difficult to distinguish. After 10 day old, the male pigeon grows fast, has a strong body and is sensitive to reaching forward. Most of them peck their hands or flap their wings with their mouths, while females do the opposite. Third, the identification of male and female adult pigeons. From the appearance, the male pigeon has a big body, a thick and hard neck, strong feet, a big and round head, a large and wide nasal tumor, no white meat line in the center of the nasal tumor, a main feather tip, a dirty tail feather, a long keel and a forkless tail gland tip. The female pigeon is small and compact, with thin and soft neck, thin and small feet, flat and narrow head, graceful posture, docile temperament and narrow and small nose tumor. Four months later, a white meat line appeared in the center of the nasal tumor, with the tip of the main feather round, the tail feather clean, the tip of the tail gland bifurcated and the keel short. When touching the pelvis, the male pigeon's pelvis is narrow, the distance between the two pubic bones is about one finger wide, while the female pigeon's pelvis is wide, and the distance between the two pubic bones is about two fingers wide, which is elastic. In estrus, the male pigeons often chase the female pigeons, "courting" around the female pigeons, nodding frequently, making a "goo goo" cry, with neck feathers and back feathers protruding and tail feathers fanning out. At this time, the mother pigeon behaved meekly, walking slowly or squatting down to accept the "courtship" of the male pigeon. Four. Identification method of immature pigeons: according to the characteristics of pigeons using anus as fertilization organ. We first touch the anus of the pigeon with our fingers. If it is a male pigeon, its tail will fall off during mating. If it is a pigeon, the tail is just the opposite, it is upward. If pigeon lovers are worried about the identification error, they might as well touch it several times to accurately judge the gender of the pigeon. Because birds mate through anal contact, when we touch their sexy organs with our hands, pigeons will make instinctive performances, otherwise they will not be able to mate. Through the above four identification methods, the success rate is over 90%. Interested pigeons may wish to have a try.