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Hummingbird

Hummingbird

Hummingbird is a family of birds.

Hummingbirds are birds native to the Americas and comprise the biological family Trochilidae. With about 360 species, they occur from Alaska to Tierra del Fuego, but the vast majority of the species are found in the tropics. They are small birds, with most species measuring 7.5–13 cm (3–5 in) in length. The smallest extant hummingbird species is the 5 cm (2.0 in) bee hummingbird, which weighs less than 2.0 g (0.07 oz). The largest hummingbird species is the 23 cm (9.1 in) giant hummingbird, weighing 18–24 grams (0.63–0.85 oz). They are specialized for feeding on flower nectar, but all species also consume flying insects or spiders.

Hummingbirds split from their sister group, the swifts and treeswifts, around 42 million years ago. The common ancestor of extant hummingbirds is estimated to have lived 22 million years ago in South America. They are known as hummingbirds because of the humming sound created by their beating wings, which flap at high frequencies audible to humans. They hover in mid-air at rapid wing-flapping rates, which vary from around 12 beats per second in the largest species to around 80 per second in small hummingbirds. Of those species that have been measured during flying in wind tunnels, their top speeds exceed 15 m/s (54 km/h; 34 mph). During courtship, some male species dive from 30 metres (100 ft) of height above a female at speeds around 23 m/s (83 km/h; 51 mph).

Hummingbirds have the highest mass-specific metabolic rate of any homeothermic animal. To conserve energy when food is scarce and at night when not foraging, they can enter torpor, a state similar to hibernation, and slow their metabolic rate to 1/15 of its normal rate.

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August 4, 2021
WebWire
Ahead of SuperCorrExpo, HP Inc. announced a new wave of innovation for its HP PageWide corrugated solutions portfolio to help drive scaled and profitable production of digitally printed packaging applications. HP will be conducting virtual product demonstrations throughout SuperCorr, which can be arranged via corrugated.packaging@hp.com. The company continues to prioritize the health and safety of its employees, customers and prospects, and has chosen not to have a physical presence a...
Mike Butcher
July 9, 2021
TechCrunch
Seed investment firm Hummingbird VC, which previously invested in Deliveroo, Peak Games, MarkaVIP, and Kraken has a new Managing Partner. Firat Ileri, previously a Partner - who at 28 became one of Europe's youngest VCs when he joined in 2012 - takes over from Founding Partner Barend Van den Brande, who will now take on [...]
Mike Butcher
July 9, 2021
TechCrunch
Seed investment firm Hummingbird VC, which previously invested in Deliveroo, Peak Games, MarkaVIP, and Kraken has a new Managing Partner. Firat Ileri, previously a Partner - who at 28 became one of Europe's youngest VCs when he joined in 2012 - takes over from Founding Partner Barend Van den Brande, who will now take on [...]
Science X staff
May 26, 2021
phys.org
Around 281 million people, or 3.6 % of the world's population, currently live outside their country of birth. Whether driven by armed conflict, poverty, human rights abuses, political repression, or economic and educational opportunities, migration remains a matter of enormous social and political concern for many governments.
JAMES GORMAN
February 5, 2019
www.nytimes.com
Winsomely captured in poems and song, the birds are yielding new secrets about their astounding beaks and penchant for violence.

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