Why is it important to protect a bird from direct sunlight during summer?

Protecting a bird from direct sunlight during summer is primarily important to prevent overheating. Birds, including those used in falconry, can suffer from heat stress when exposed to high temperatures, which can lead to severe health issues or even death. Direct sunlight can raise their body temperature significantly, and without adequate shade or cooling measures, they may not be able to self-regulate their heat effectively.

While it's true that birds do need vitamin D, which is produced in their bodies when exposed to sunlight, it is not the primary concern during the intense heat of summer. Strategies can be implemented to allow for safe sun exposure in moderation while still providing necessary protection from direct heat. Therefore, focusing on preventing overheating is essential, especially during the hottest months of the year when the risk of heat-related illnesses increases.