Hummingbirds are among the smallest birds in the world but they make up for their small size with unique talents and fearless flying. Types of hummingbirds: There are over 300 types of hummingbirds. They belong to the species family called Trochilidae. Geographic Range: Hummingbirds are found only in North, Central and South America, ranging from Alaska and eastern Canada down to the southernmost tip of South America. Length: Hummingbirds range in body length from 5 to 6 centimeters ( 2.0 – 2.4 inches) for the Bee Hummingbird up to 21.5 cm ( 8.5 in ) for the Giant Hummingbird. Wingspan: The Giant Hummingbird has a wingspan up to 21.5 cm ( 8.5 in ) in length while the Bee Hummingbird wingspan is only 3.25 cm (1.28 in ) Weight: Hummingbirds range from the Bee Hummingbird, which weighs less than 2 grams ( 0.07 ounces), to the Giant Hummingbird, which weighs from 19 to 21 grams ( 0.67 oz – 0.74 oz ). For comparison, a U.S. penny weighs 2.5 grams ( 0.09 oz ). Food: Hummingbirds primarily drink nectar from flowers but also catch insects and spiders for additional nutrition. Unique: What’s unique about hummingbirds is their ability to hover and their ability to fly backwards.