Swackett Fun Fact: Hummingbirds migrate just above the waves of the Gulf of Mexico or just above the trees when flying overland while Canada Geese can migrate at 20,000 feet or higher, hummingbirds certainly would not function well at that altitude.
Swackett Fun Fact: What Triggers Leaves to Fall?
Swackett Fun Fact: The veins that carry fluids into and out of the leaf gradually close off as a layer of cells forms at the base of each leaf. These clogged veins trap sugars in the leaf and promote production of anthocyanins. Once this separation layer is complete and the connecting tissue are sealed off, the leaf is ready to fall.