Ah, the delight of visual beauty mixed with the chirps and beeps of hummingbirds is one of the finest gifts Mother Nature has bestowed upon humankind. Celebrating this gorgeous treat for the eyes and ears, the United States Postal Service has issued four stamps celebrating the flora of America’s spring and summer gardens and the vital role of hummingbirds in their pollination. Named Garden Delights, every stamp has a female ruby-throated hummingbird hovering near a...