Every year millions of birds travel without maps across mountains, deserts and oceans along a 9,000-kilometer invisible highway |
Every year, as the seasons change, millions of birds make one of nature’s greatest journeys. Some fly only a few hundred kilometers, while others fly thousands of kilometers without recognizing political boundaries or national boundaries. Instead, they follow ancient migration routes known as flyways, which are natural aerial corridors determined by geography, climate, and the … Read more
