The ruby-throated hummingbird is the most typical hummingbird seen east of the Mississippi river. They embark on a massive migration from as far north as Canada where they reproduce, to as far south as Panama where a small number winter. How do they do it at such a small size?
What was discovered was that hummingbirds that are old tended to get their journeys started early, which is believed is as a result of the birds being experienced.
It is fascinating the young of the year migrate after grownups and therefore are very distinct within their stopover phenology,”
explains Chris Clark, who coauthored the paper printed in The Auk: Ornithological Advances.
This indicates there are significant differences between flying south for the very first time, compared to flying someplace again as an adult.”
According to morphometric data – such as weight and size – taken from the small creatures, the team also forecast that male fowl as well as the more senior are probably also in a position to go further than the females as well as those birds completing their first migration.
The best thing, for me, is how a few of these fowl efficiently double their body mass during migration and are still in a position to do migratory flights,”
says Theodore Zenzal, another of the coauthors.
However there continue to be questions to be answered. While we understand the small birds can fly such immense spaces with no break, it’s still not known whether or not they take the most direct path by crossing the Gulf of Mexico, or skirt round the border. The researchers would likewise like to delve farther into the differences in the migratory behavior between the elderly and younger fowl, and what choices the age groups make.