Hummingbirds at Panama feeder

This video says about itself:

Snowy-bellied Hummingbird And Violet-crowned Woodnymph Visit The Panama Fruit Feeder – May 27, 2021

The nectar feeder is popular this morning. A Snowy-bellied Hummingbird came in for some nectar and then an hour later a female or juvenile Violet-crowned Woodnymph came in for a lengthy drink.

Bromeliad plants and hummingbirds, new research

This 1 December 2020 video says about itself:

Bromeliads: the explosive plant family

The Linnean Society of London publishes three peer-reviewed scientific journals in biology, botany and zoology. The journals cover original scientific papers and studies.

Evolution of hummingbirds

This 5 November 2020 video says about itself:

The Evolution of Hummingbirds

Today, hummingbirds are only found in north and south America but over 30 million years ago a hummingbird lived in southern Germany, and is the oldest known fossil of a hummingbird known. How did it get there and how did hummingbirds evolve to hover and live off nectar?

Many hummingbirds in Texas, USA

This video from the USA says about itself:

Hummingbirds Aflutter In The Davis Mountains – August 25, 2020

Tiny hummingbirds buzz through the West Texas feeder cam site in the Davis Mountains. This site sits along the migration routes of more than 10 different species of hummingbirds.

How rufous hummingbirds migrate

This 2014 video says about itself:

Baby Rufous hummingbirds life cycle. Chapter 1

The life cycle of Rufous chicks. From nest building to raising and teaching and caring for their young. Same video on my channel with hummer sounds.

From Oregon State University in the USA:

For rufous hummingbirds, migration looks different depending on age and sex

July 28, 2020

Plucky, beautiful and declining in numbers at about a 2% annual rate, the rufous hummingbird makes its long annual migration in different timing and route patterns based the birds’ age and sex, new research by Oregon State University shows.

The findings, published in the journal Avian Conservation & Ecology, are important because the more that is known about how rufous hummingbirds migrate, the more that can be done to ensure birds of different ages and sexes have the resources they need each year on their journey up and down the western part of North America.

“Different age-sex categories of rufous hummingbirds use alternative routes and differ in migration cycles and distributions,” said the study’s corresponding author, Jose?e Rousseau, a Ph.D. candidate in the OSU College of Forestry. “Our results seem to indicate that the age-sex categories could be affected in different ways by things like habitat loss and climate during migration. If we keep that in mind, we can make conservation efforts that help these amazingly feisty little creatures — and I describe them that way with the utmost respect — have the resources they need during their migration across the landscape.”

With a reputation as one of the continent’s most determined and assertive birds, the rufous hummingbird, scientifically known as Selasphorus rufus, weighs less than a nickel and tops out at about 3 inches long. Based on its body length, its migratory journey is one of the world’s longest — the hummingbirds that travel the full extent of the range, from Alaska to Mexico, migrate almost 80 million body lengths, or 3,900 miles.

By comparison, an arctic tern covers about 51 million body lengths on the 13-inch bird’s one-way flight of 11,000 miles.

Rufous hummingbirds live in open woodlands, nest in trees and eat nectar. A common visitor to bird feeders, the extremely territorial rufous hummingbird will chase away much larger species of hummingbirds, and they’ll even drive squirrels away from their nesting areas.

Equipped with excellent memories, rufous hummingbirds will visit the same feeders over multiple years, even looking for food at former locations of feeders that have been moved.

The study by scientists in the Oregon State University College of Forestry and at the Klamath Bird Observatory in Ashland looked at 15 years’ worth of fall migration banding data involving nearly 30,000 hummingbird captures at more than 450 locations.

The research showed that adult females tended to have a southbound migration route that was parallel to and between those of young and adult males, Rousseau said.

“Also, a greater number of young birds migrated south through California in comparison to adult females and adult males,” she said. “Our results suggest that the migration of each age-sex category is separated by about two weeks, with adult males migrating first, followed by adult females, and then the young of both sexes. Interestingly, though, migration speed was not statistically different among the categories.”

The adult males were captured within a smaller geographic distribution during any given week of migration compared with adult females and young birds, she added.

Collaborating with Rousseau on the study were Matt Betts of the OSU College of Forestry and John Alexander of the Klamath Bird Observatory.

The Natural Sciences and Engineering Research Council, the National Science Foundation, the Western Hummingbird Partnership, the U.S. Forest Service and the OSU Richardson Family Graduate Fellowship supported the research.

Hummingbirds at Texas, USA feeders

This 14 July 2020 video from the USA says about itself:

Black-chinned, Broad-tailed, and Lucifer Hummingbirds Start Their Day In West Texas – July 14, 2020

A male Black-chinned, male Broad-tailed, and female Lucifer Hummingbird all visit the center feeder on the West Texas Hummingbird cam. More than a dozen different species of hummingbirds are known to make their way through this area of the Davis Mountains, and may even stop in front of the cam, at the height of migration activity.

Hummingbirds, praying mantis, bees at Texas feeder

This video from the USA says about itself:

Praying Mantis Visits Hummingbird Feeder In West Texas – June 25, 2020

A praying mantis drops down to the hummingbird feeders and scuttles from port to port, likely in search of an insect [bee] meal. In rare cases, larger mantids have been documented staking out hummingbird feeders and preying on the birds that visit, but this individual is too small to be a risk to the birds.

Butterfly, hummingbirds at Texas, USA feeders

This video from the USA says about itself:

Butterfly Visits West Texas Feeders Alongside Hummingbirds – June 17, 2020

Enjoy watching a cloudless sulphur butterfly sip nectar from the West Texas hummingbird feeders as hummers hover from port to port.