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" ... "'Colly' means black, so they may be Eurasian blackbirds, [Turdus merula] a common songbird", said Dr Rasmussen. ... "
" ... Migrating flock of red-winged blackbirds, Agelaius phoeniceus. Red-winged blackbirds are common... [+] denizens of wetlands and marshes throughout most of North America, but they have declined by an estimated 92 million individuals. (Credit: Minette Layne / CC BY-NC 2.0) ... "
" ... Since the Miracle on the Hudson, USDA scientists have stepped up research to help birds get out of the way, attempting to develop warning light systems. It’s not an easy problem given variances in different species’ vision. Birds generally see in the ultraviolet range, beyond what humans can sense—that’s why so many have iridescent feathers—and not so well at the red end of the spectrum, which is why the flashing red beacons on airplanes don’t help. Researchers have also come up with a recipe for a pulse rate of light and wavelength that works for blackbirds and starlings. ... "
" ... Though there are a number of military jets that can fly much faster than the G650ER, few are designed to fly at those kind of high speeds for two days straight. Indeed, the U.S. Air Force’s now-retired SR-71 blackbirds could fly at nearly 2,200 mph (faster than Mach 3) and, in theory could fly around the world without landing because they could be refueled in the air by military tanker planes. But they were never asked to circle the Earth . And such a long flight would have been very taxing not only on the planes themselves but also on their lone pilots. With four official pilots aboard, plus a retired astronaut and a retired cosmonaut, pilot fatigue should not be a significant problem in the One More Orbit team’s ability to complete the flight. ... "