Manx shearwaters' internal clocks disrupted by long flights

Questions about this coverage

How did the left and right cover Manx shearwaters' internal clocks disrupted by long flights?

Of the 52 outlets on this story carrying a published leaning rating, 24% are rated left, 54% are rated centre, 22% are rated right. Those percentages are shares of the rated outlets, not of every outlet that ran it, which was 66. The sections above set out what each side emphasised, in its own terms.

Is Manx shearwaters' internal clocks disrupted by long flights left or right?

Neither side dominates it. Of the 52 rated outlets on this story, 24% are rated left, 54% are rated centre, 22% are rated right, and no side holds the 70% this site would want before calling a field one-sided. A story is not left or right in any case; the outlets that carried it are what carry ratings.

Is the coverage of Manx shearwaters' internal clocks disrupted by long flights biased?

Manx shearwaters' internal clocks disrupted by long flights is one event reported by 66 outlets, and this page does not rate the story as biased or unbiased. What it publishes is the spread: which outlets ran it, where named rating organisations place each of them on the spectrum, and what each side chose to lead with. A leaning rating describes an outlet's record over time, not this article, and the two should not be run together.

Which outlets covered Manx shearwaters' internal clocks disrupted by long flights?

66 that we know of, every one of them listed further up this page with a link to its own report and to what we hold on the publisher. Nothing here is a summary of somebody else's summary: the outlets are named so the original reporting can be read.

What is the main finding of the study on Manx shearwaters?

The study found that Manx shearwaters experience a phenomenon similar to human jet lag during long-distance flights. Their internal biological clocks become desynchronised with local time, leading to navigation errors as they rely on the sun as a compass.

How did researchers study the birds' navigation?

Researchers analysed 20 years of GPS data from 1,045 breeding Manx shearwaters. They examined homing flights made out of sight of land to calculate directional deviations caused by the birds' internal clocks being out of sync with local time.

What kind of navigation errors did the birds make?

The study recorded directional deviations of up to 15 degrees during the birds' flights. These deviations closely matched the errors predicted if the birds' internal clocks remained set to the time at dawn, indicating a desynchronisation with local time.