Birdbrains Can Be Very Baffling!
We live near the Atlantic coast and every year thousands and millions of birds make their annual trips to the North for the summer and go back South to stay warm for the winter. We have some small birdhouses for bluebirds and this year for the first time we had several nesting in them this Spring!
Almost every day now there are geese flying over our house in a V formation heading South from Canada before the cold weather sets in. Many birds return to the same exact spot where they were the year before. Some seabirds fly several thousand miles across the ocean to return to the nest they were born in the year before.
How do they know where they are going? There are many theories that suggest they have a sort of internal compass or that they map the terrain from above in their memory as they are flying. What do you think?