The cold weather in winter and the carelessness of the management will make the pigeons sick. Therefore, the winter management of pigeons must be diligent in observation and timely detection of sick pigeons. This is a place that fanciers can never ignore. Mental performance The healthy pigeons are full of spirit, flexible and alert, bright eyes and eyes, no tears and eyes. The sick pigeons are insecure, have a slow response, live alone, retire, listlessness, blind eyes, sleeping eyes, swollen eyelids, and secretions. Appetite drinking water Healthy pigeons have a strong appetite (catch food), feeding and drinking water are normal. It was found that the reduction of food, lack of food, increase of drinking desire, or no feeding of young birds were all signs of the disease. Walking wings Healthy pigeons have a steady walking pace, powerful wings, and they fly and fall. It is more difficult to catch pigeons when they are caught by hand. The sick pigeon is of weak constitution, easy to catch, poor escape, and often hangs its head. Feather luster Healthy pigeon feathers are plump and clean, shiny, and rich in lipids. The feathers of the sick pigeons were dull, dull, and untidy, and there was hair loss during the non-moult stage and the new feathers grew slowly. Nasal tumor mouth Healthy pigeon nose is clean and flexible, adult pigeons have a bright white nose, young pigeons are flesh-colored, youngsters gradually turn from flesh to white, nostrils are lubricated, slightly moist, mouth is lubricated, odorless, and unpolluted. Pigeon nose tumors are moist, white is faded, color is dark, swollen, inelastic, hands are cold, and nostrils often run out of sticky and purulent nasal fluids, etc. Most of them are morbid. Scrotal sac swells, strong, or soft. With a sense of volatility, a large amount of acid odor is poured out from the mouth during pouring, vomiting after eating, mucus from the mouth, and yawning from time to time. Electronic Door Lock,Tower Base Station Electronic Locks,Electronic Locking System,Electronic Door Locking System Ningbo Hengchieh Locking Technology Co., Ltd. , https://www.hengchieh.com