How Do Birds Navigate The Skies?

When you see a flock of birds fly up in the sky, have you ever wondered how they know where they are going? If humans have difficulty in navigating short distances on foot, what more if they were on air and without the aid of technology? The lack of technological assistance makes bird flight much more interesting. AmazeLab looks into the avian’s sky navigation and the established explanation for their flight. 

-via Flipboard 

Image credit: Alvaro Pinot

Source: neatorama