|Pixabay / Antranias|
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.”To read the rest of the article, all y'all can flock on over to "Birds’ Flawless Flight Plan".
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.