The bald eagle symbolizes strength and freedom, making it the perfect choice for national bird of the #UnitedStates 🇺🇸 If you look closely, you’ll see this bird’s nictitating membrane over their eye. This membrane acts as an inner eyelid, protecting the eye from dust and keeping it moist. Photo by markian.b #BaldEagle #Animals #WildlifePhotography #July4th #IndependenceDay #Fascinating