Secrets of Migratory Birds Revealed

For ages, people have been cognating on where birds go, and why, and then get re-mystified when they return. Some of the speculations of old were quite fanciful. With advances in science and improved abilities to observe, we're finding out some of the secrets of migratory birds.

For ages, people have wondered where migratory birds go, and why. Better observation abilities and scientific discoveries and revealing some of these secrets.
Pixabay / Antranias
The question of "Why do they migrate?" began to have an answer back in the 1500s. Scientists have discovered that they have internal navigation systems, and these testify to the wisdom of their Creator, and frustrate bacteria-to-bird evolutionists.
Who hasn’t thrilled to the sight of V-formations of migrating geese as they wing their way north to their nesting grounds, or heard them squawking overhead in autumn as they head back south to spend the winter in milder climates? This amazing, predictable movement occurs twice each year, involving millions of birds worldwide, traveling hundreds and even thousands of miles. Truly, “migration is the most spectacular of bird movements.”

But for centuries this phenomenon was shrouded in mystery. Why do birds migrate and when do they travel? Where are they headed and how do they know where to go?

Until recently, erroneous theories abounded. Aristotle believed that certain species hid in holes in the ground and in trees, where they became featherless until the following spring. Carolus Linnaeus, who gave us the binomial classification system for all living creatures, believed that swallows wintered underwater.
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