1. Use a heat lamp. A heat lamp can be placed near your cockatiel's cage to provide additional warmth. Make sure the heat lamp is not too close to the cage, as this could cause the bird to overheat.
2. Cover the cage at night. A cover will help to keep the heat from escaping from the cage at night. You can use a blanket, towel, or even a piece of cardboard to cover the cage.
3. Move the cage to a warmer location. If possible, move the cage to a warmer location in your home, such as near a sunny window or a heating vent.
4. Provide perches of different sizes and materials. This will give your cockatiel options for finding the most comfortable temperature.
5. Give your cockatiel a warm bath. A warm bath can help to raise your cockatiel's body temperature. Make sure the water is not too hot, as this could burn the bird.
6. Offer warm food and water. Warm food and water can help to keep your cockatiel's body temperature up. You can offer your bird warm fruits and vegetables, as well as warm water.
7. Spend time with your cockatiel. Interacting with your cockatiel can help to keep it warm and happy. You can talk to your bird, play with it, or just hold it in your hands.
By following these tips, you can help to keep your cockatiel warm and comfortable during the winter months.