The birds also likely alternate which leg they stand on to avoid one leg becoming too cold.
Instead officers say they're still checking drivers by getting them to do things like stand on one leg and walk in a straight line.
However, the researchers did find that flamingoes prefer to stand on one leg far more often when they are standing in water than when standing on land, they report in the journal Zoo Biology.
"The market's really just trying to work out which leg to stand on, " said Ole Hansen, head of commodity strategy at Saxo Bank.
Others birds, such as herons, storks, ducks and many others also often stand on a single leg in water, perhaps for the same reasons as flamingoes.
"What I was saying was, let's have better informed dialogue about Sellafield but leave the emotive stuff out of it, particularly that claim, which doesn't have a leg to stand on, " he said.
So when it comes to estimating economic impact for sporting events, best to show caution and restraint, and ultimately attempt to verify any public statements with market research vis-a-vis on-site data collection so that you have a leg to stand on when reporting such figures.
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Despite a weight disadvantage, he hiped Whitfield for the first fall, went down to an outside hipe for the second and then won the third and deciding fall by going to buttock but changing direction suddenly with a cross-click which left Whitfield without a leg to stand on.
Hachim Amla and Ashwell Prince offered a semblance of stability with a 22-run stand before Harbhajan trapped Amla leg before in his second over.
Lara's decision to bowl gained early reward with the wicket of Jayasuriya caught behind off Collymore down the leg-side after a stand of 38 with Marvan Atapattu.
The home side, handicapped by the loss of stand-off Danny McGuire beforehand with a leg injury, were also guilty of letting several gilt-edged chances go begging.
Goud was eventually caught behind by stand-in skipper Ridley Jacobs pushing forward against leg-spinner Mahendra Nagamootoo before the innings ended two runs later.
Suppiah was eventually the first to fall, trapped leg before by Mason, after an opening stand of 140, before Stephen Moore dropped Trescothick off Gareth Andrew at cover when he was 73.
Shoaib Malik ground out 17 in 14 overs but then fell to Kulasekera and Mohammad Yousuf went lbw to leg-spinner Lokuarachchi after making 26 in a stand of 35 in 17 overs with Razzaq.
Sometimes the better mousetraps they invent need a temporary leg up to penetrate existing markets, before they can stand on their own.
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The South African tail-ender deposited his five maximums over the short leg-side boundary, sharing a ninth-wicket stand of 71 with Naqaash Tahir, who was dropped twice on three by Dale Benkenstein at third slip.
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"We are a squad of 30 players and there are certain players who played in the away leg of the Tri-Nations who I am very confident can stand in, " said White.
In reply Sri Lankan openers Upul Tharanga (30) and debutant Lahiru Thirimanne (22) made 22 for the opening stand before Sreesanth broke through, snaring Thirimanne who skied to Gambhir at square leg.
It was not clear why Dhoni had waited so long to introduce the leg-spinner, but he crucially ended a 68-run stand in his first wicket when Hussey's edge looped invitingly to first slip.
Resist the urge to fast forward your DVR and stand behind your chair while holding a book or something heavy, then swing your leg over the chair.
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But Ovrebro allowed it to stand and Fiorentina must come from behind to reach the quarter-finals when the second leg is played in Italy on Tuesday 9 March.
Botha was given two let-offs - at slip and short leg off successive balls from Wright and Rayner - before raising a fourth consecutive stand of 50 or more.
Ervine extended his stand with England Under-19 all-rounder Liam Dawson to 94 before Dawson was caught at leg slip.
The home side offered greater resistance when they came out to bat for a second time, with Michael Carberry and Brown sharing a stand of 63 before Brown, on 30, hooked a ball from Chris Jordan to Matt Nicholson at long-leg.
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