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Humming Birds

Hummingbirds comprise the family Trochilidae. They are among the smallest of birds, most species measuring in the 7.513 cm (35 in) range. Indeed, the smallest extant bird species is a hummingbird, the 5 cm 'Bee Hummingbird'. They can hover in mid-air by rapidly flapping their wings 1280 times per second (depending on the species). They are known as hummingbirds because of the humming sound created by their beating wings, which sometimes sound like bees or other insects. To conserve energy while they sleep or when food is scarce, they have the ability to go into a hibernation-like state (torpor) where their metabolic rate is slowed to 1/15th of its normal rate. They are also the only group of birds with the ability to fly backwards. They can fly at speeds exceeding 15 m/s (54 km/h; 34 mph). Reference: Wikipedia

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Humming School Humming School 2 Humming School 3
Confrontation Rufous Tailed Hummingbird Sparkling Violet-Ear
Andean Emerald Booted Racket-Tails Aerial Dance
Brown Inca Western Emerald Violet Tailed Sylph
A Word in Your Ear Sky Divers Humming Birds
Fawn Breasted Brilliant (Heliodoxa rubinoides) Booted Racket-Tail Feed Me
Violet Tailed Sylph Purple Throated Woodstar Brown Inca  (Coeligena wilsoni)
Buff-tailed Coronet Buff-tailed Coronet Rufous Tailed and Green Crowned Brilliant
Overshadowed Back Off! Escape
Buff-tailed Coronet Green-crowned Brilliant (Heliodoxa jacula) Western Emerald
Fawn Breasted Brilliant (Heliodoxa rubinoides) Rufous Tailed Hummingbird Buff-tailed Coronet
Stand Off Brown Inca (Coeligena wilsoni) Buff-tailed Coronet
Confrontation Rush Hour Rufous Tailed Hummingbird