This female Ruby-throated Hummingbird visited my flowers in front of the window every summer-day. Captured in Lac-des-Plages, Quebec, Canada. Camera Nikon D600, 1/2500 sec at f/5.6, focal lenght 300 mm, ISO-1800, lens AF-S Nikkor 28-300 mm. Raw file processed in Lightroom 5.
Hummingbirds (Colibri) are among the smallest of birds, measuring in the 7.5–13 cm (3–5 in) range, some species can weigh less than a penny. They hover in mid-air by rapidly flapping their wings 12–80 times per second. They are known as hummingbirds because of the humming sound created by their beating wings, which sometimes sounds 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 where their metabolic rate is slowed to 1/15th of its normal rate. They can fly at speeds exceeding 54 km/h (34 mph); they are also the only group of birds with the ability to fly backwards. They migrate from Canada south in fall to spend the winter in Mexico or Central America.