A Ruby-throated Hummingbird weighs 3 grams. A first class letter weighs 30 grams. A hummingbird eats half its weight in sugar each day. Hummingbirds can fly backwards, forwards, sideways, upside down, and can hover. These partially reflect light causing the brilliant reds, purples, greens, and blues seen on the birds.
Hummingbirds claim a feeding territory and defend it vigorously.
They attack other hummingbirds that cross their border and will attack much larger birds including crows. Ruby-throated Hummingbirds migrate 500 miles nonstop across the Gulf of Mexico. This extra fat will all be burned during the flight. Good hummingbird flowers have red or orange trumpet shaped blossoms, but hummingbirds will feed at almost any brightly colored bloom that produces a good bit of nectar. Put up several scattered about your yard.