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Anna's hummingbird (Calypte anna) in nocturnal torpor during a cold winter night (−8 °C (18 °F) near Vancouver, British Columbia. The bird remained in torpor with an unchanged position for more than 12 hours. Torpor has been shown to be a strategy of small migrant birds to preserve their body energy stores.
Hummingbirds hover near our doorstep. More birdwatchers aim to attract hummers to feeders than any other bird. The primary guideline for feeding hummers is “Do no harm.”
According to Rutgers experts, any hummingbirds seen at feeders during the winter are likely vagrant western species, such as the Rufous hummingbird (*Selasphorus rufus*), rather than the Ruby ...
Hummingbirds can remember their favorite feeding locations, and experts have shown that some hummingbirds have returned to the same spot year after year, according to Hummingbird Central. Where to ...
[17] [18] Although quantitative data are absent, it is likely that a sizable percentage of Anna's hummingbirds in the Pacific Northwest still do migrate south for winter, as of 2017. [18] Female Anna's hummingbird in nocturnal torpor during winter; −8 °C (18 °F), near Vancouver, British Columbia. The bird remained in torpor with an ...
The rufous hummingbird is now placed with eight other species in the genus Selasphorus that was introduced in 1832 by the English naturalist William Swainson. [7] [8] The genus name combines the Ancient Greek selas meaning "light" or "flame" with -phoros meaning "-carrying". The specific epithet rufus is the Latin word for "red". [9]
Hummingbird feeders are a great way to attract and watch one of North America's favorite birds, but there are a few things you need to know. Hummingbirds: Everything you need to know about feeders ...
The shapes of hummingbird beaks (also called bills) vary widely as an adaptation for specialized feeding, [65] [66] with some 7000 flowering plants pollinated by hummingbird nectar feeding. [194] Hummingbird beak lengths range from about 6 millimetres (0.24 in) to as long as 110 millimetres (4.3 in). [195]