What are the most important signs that birds are too warm or too cold?
When birds are too warm they migrate to cooler or higher airflow areas, hold feathers closer to the body, droop or lift their wings to get more air cooling, drink more and eat less. If they stop eating and begin panting, especially if normally pink skin areas turn dark red, they definitely are over-heated. When birds are too cold, they tend to huddle together on the floor, move away from the direction of air movement, and “fluff” feathers to increase their insulating value.