How about homing pigeons in hot weather?

1. At high temperature, a large amount of water in birds will evaporate, resulting in dehydration of birds, which will lead to physical dysfunction and even life-threatening.

2. The weather is hot, the air humidity is high, and the oxygen concentration is low. When racing pigeons fly at high altitude, they will have greater respiratory pressure, which will cause certain damage to the respiratory system.

3. At high temperature, the muscles and internal organs of pigeons will be affected by hot extrusion, which will affect the flight function and health of pigeons.