Frantically flapping, the birds truly appear to be struggling to stay in the air.
Does your child express excitement with unusual physical behaviors, such as flapping his or her hands?
No, what will have Europeans flapping their gums in amazement is the idea of taxes on lottery winnings.
Rather than flapping from back to belly, their wings are moving more like limbs reaching forward and scooping backward.
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"All that time those guys spent flapping their gums they should have spend working on their product, " Laia says.
Along with the flapping, the robotic bird included a small sound generating system to play authentic calls and swamp noises.
On the other hand, a free, heavily advertised service could be swamped by hypochondriacs flapping over the latest health scare.
Most weekdays he sprints out of the Euston tube station in his bright green running sneakers, knapsack flapping on his back.
The scenes of Clark Kent's Kansas childhood are drenched in Americana, complete with freshly laundered flannels flapping on the clothes line.
"There is a better chance of people flapping their arms and flying from Lanai to Maui, " he told The Associated Press.
"The tarp on his winterized boat had sort of been flapping in the wind, " his stepson Robert Duffy told CNN's Piers Morgan.
Those butterflies flapping their wings in Tokyo generate crosswinds on Wall Street.
But before he cut the line you could see that the shark was flapping around, injuring himself, because he was desperate to survive.
Its landmark event is the Man-Powered Flight, for which contestants build rudimentary wings and propellers and hurl themselves off the harbour wall, flapping wildly.
Scientists at North Carolina's Duke University worked with a taxidermist to create a wing-flapping "Robosparrow" using picaxe chips, tiny linear motors... and a dead sparrow.
The off-throttle overrun sounds like ripped bodices flapping on a flagpole.
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They speak another language there a language of gestures, stares, flapping mouths, halting or skittering walks, and sometimes movements and expressions of infinite intricacy and beauty.
Mr Bush is all winks, jokes, flapping hands and puckish grins.
"They see this lone horseman galloping toward them, and they describe his coat flapping in the breeze and the top hat on his head, " Milligan says.
"All of these little feathered species running and flapping around ... were all very similar, " Witmer, who had no role in the research, said in an email.
While the project might sound a little bit gruesome, the research helped gather data to support the hypothesis that wing flapping is often used to deter rivals.
But then again, perhaps it was just the call of a crane flying overhead, the flapping of wings and the drone of the insects in the forest.
With half-time approaching, Ismael Bouzid fluffed a header with Accies keeper Cerny flapping and passed up an opportunity to give Hearts a comfortable lead at the interval.
On top of the mess, one straight tube juts out, a square of gray duct tape hanging from it, flapping in the breeze, a flag of surrender.
Eventually the younger fisherman spotted their net, entangled were flounder, pike-perch, bream and one very large carp, all tossed into the bottom of the boat, flapping and gasping.
This was not the home debut of dreams and Montella was flapping his arms on the halfway line in frustration at the goal conceded by his new team-mates.
BBC: SPORT | Football | My Club | Fulham | Montella has lift-off at Fulham
James Coppinger crossed the ball into the box and picked out Price, and with Delfouneso flapping, he steered a low shot past Guzan into the corner of the net.
The Argentine keeper was less convincing from the following corner, though, flapping at thin air and then turning to see Collins's close-range shot blocked on the line by Clyne.
The experiment, carried out over a period of two months, confirmed to the researchers that wing-flapping is a sign of male aggression, said Dr Rindy Anderson who led the study.
The visitors did not hold on for long though, with Letizi flapping at the ball and Morrison capitalising amid the scramble to fire over the line and draw Dunfermline level.
BBC: SPORT | Football | Scottish Premier | Dunfermline Ath 1-1 Rangers
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