Facebook Read more … we have a small favour to ask. More people, like you, are reading and supporting the Guardian’s independent, investigative journalism than ever before. And unlike many news organisations, we made the choice to keep our reporting open for all, regardless of where they live or what they can afford to pay.The Guardian will engage with the most critical issues of our time – from the escalating climate catastrophe to widespread inequality to the influence of big tech on our lives. At a time when factual information is a necessity, we believe that each of us, around the world, deserves access to accurate reporting with integrity at its heart.Our editorial independence means we set our own agenda and voice our own opinions. Guardian journalism is free from commercial and political bias and not influenced by billionaire owners or shareholders. This means we can give a voice to those less heard, explore where others turn away, and rigorously challenge those in power.We hope you will consider supporting us today. We need your support to keep delivering quality journalism that’s open and independent. Every reader contribution, however big or small, is so valuable. Support The Guardian from as little as $1 – and it only takes a minute. Thank you. Reuse this content Sean Ingle Andy Murray to make last‑minute decision on playing at Wimbledon Roger Federer Like Roger Federer’s exquisite backhand down the line, all things must pass – and nobody is more aware of the tyranny of time than the Swiss.Still resting from the rigours of clay (the odds on his ever trying again for the French Open are paper-thin), Federer is 37 in August and continues to astound with his longevity. Federer returned to world No 1 this week without lifting a racket after Dominic Thiem stopped Rafael Nadal’s record run of 50 sets in a row in Madrid last week – then the Austrian bowed out in Rome on Wednesday with a spectacular racket-smash when losing to Fabio Fognini.Unless he turns his whole strategy upside down, we will not see Federer on clay again, although nobody would bet against the best-preserved athlete in sport adding to his eight Wimbledon titles, given the paucity of in-form, fit and available grass specialists. Roger Federer after defeating Marin Cilic last July, giving him his eighth Wimbledon singles title. Photograph: Daniel Leal-Olivas/Reuters Share on Messenger Pinterest Andy Murray is finding his battle with the years more problematic but it is also a love of tennis that keeps him going. However, as he stalls over the exact date of his comeback, could he be considering a most unusual re-entry point: doubles with his brother, Jamie?They have played together 59 times, so it might be more than idle speculation that the younger sibling of Britain’s most decorated tennis family could extend his faltering career by one day teaming up with doubles specialist Jamie once again.Murray was adamant after his exhibition match in Glasgow last November against Federer that he would not return to the Tour until he was “100% fit”. And rightly so. However, it has become clear – well opaque, at least – that, despite intensive rehab over the past five months after hip surgery, he still feels unable to make that cast-iron commitment. Twitter Murray, who turned 31 on Tuesday, would seem to have no idea when he will be fit to play again. Rarely has there been such a cloud over his career – not even after his back operation in 2013. The gloomiest scenario is Murray chooses to write off the rest of 2018. If he does, easing back into elite tennis with Jamie next year might prove to be an attractive option. It would require Jamie to suspend his partnership with Bruno Soares, temporarily at least, or after they have played out their commitment. While there are people in tennis who insist Jamie is edgy about playing with his brother, the evidence for that is slim.In the early days of their career, Jamie and Andy were a regular left-right combination on the circuit, winning 35 times between June 2006 and September 2016, as well as six out of six times in Davis Cup – but, intriguingly, never in a grand slam. They won finals in Valencia in 2010 and Tokyo in 2011, and lost in the Bangkok decider in 2006.The road back will be tough, whatever route he takes. This week, Murray’s singles ranking fell to 45; the last time he was rated that low was 19 June 2006, after losing to world No 116 Janko Tipsarevic in the first round of Queens. From there, he began his steady climb to No 1 in the world – a journey that took him 10 years.After the French Open – where he last played in a grand slam – he will drop out of the top 50 and then will be officially unranked. These are all numbers, and they in no way reflect either Murray’s determination or his passion for the game. It is inconceivable we will not seem him on a tennis court again but time and options are shrinking by the day, the week and the month. As it stands, Murray has his name down for the 250 event on grass in Rosmalen in the Netherlands in June, the week after the French Open. The Roland Garros tournament starts on Sunday week. Then there is Queens, followed by Wimbledon but continued inquiries fail to elicit anything more than shuffling feet from his team about whether he really will play in the Netherlands.Murray’s name has yet to appear on the list of wildcards for Loughborough this week (they close on Friday) or an LTA indoor hardcourt tournament that looked suspiciously as if it were invented for his comeback – as did a 250 event in Glasgow last month. He didn’t play in that one, either.He has committed, from a distance, to play in Washington DC on 28 July before the Cincinnati Masters on 11 August and the US Open, which starts two weeks later. If he misses the grass season, will he relish coming back on the hardcourts of America? Unlikely. Grass is his home.None of this is to underplay Jamie’s doubles career. He has won five grand slam titles and he and Soares remain a formidable combination but could family loyalty lead him back to playing with his brother – the way it started over upturned cereal packets across the kitchen table in Dunblane a quarter of a century ago? Jamie Murray Share on WhatsApp Since you’re here… Share on Facebook One observer who has looked closely into the qualities of the seemingly ageless Federer is the American sportswriter Jeff Bercovici, whose new book, Play On: How To Get Better With Age, is an excellent read.The secret, Bercovici says, is love. “In interview after interview since his 30th birthday, Federer has attributed his longegvity to a deep and abiding love of tennis,” he writes. “To hear him tell it, he … is just a big kid out there. ’I grew up playing against walls and cupboard and garage doors, and I still enjoy it.’”One presumes he no longer needs to bash the house up but his joy and sense of contentment are still palpable.And he is keeping an eye not only on his peers in Rome this week, while enjoying the Swiss air of his palatial home. When asked for an observation of the ATP’s second NextGen tournament – which will be back in Milan in November – he smiled and said: “They’ll eventually get better and push us out. Pretty simple.”If only it were. Sportblog Andy Murray Rafael Nadal and Roger Federer the great survivors just keep on rolling Sign up to The Recap, our weekly email of editors’ picks. Tennis Topics Share on Twitter Share via Email features Share on Pinterest Read more Share on LinkedIn Support The Guardian
The migration of the great snipe Gallinago media was previously poorly known. Three tracks in 2010 suggested a remarkable migratory behaviour including long and fast overland non-stop flights (Klaassen et al. 2011). Here we present the migration pattern of Swedish male great snipes, based on 19 individuals tracked by light-level geolocators in four different years. About half of the birds made stopover(s) in northern Europe in early autumn. They left the breeding area 15 days earlier than those which flew directly to sub-Sahara, suggesting two distinct autumn migration strategies. The autumn trans-Sahara flights were on average 5500 km long, lasted 64 h, and were flown at ground speeds of 25 m s-1 (90 km h-1). The arrival in the Sahel zone of West Africa coincided with the wet season there, and the birds stayed for on average three weeks. The birds arrived at their wintering grounds around the lower stretches of the Congo River in late September and stayed for seven months. In spring the great snipes made trans-Sahara flights of similar length and speed as in autumn, but the remaining migration through eastern Europe was notably slow. All birds returned to the breeding grounds within one week around mid-May. The annual cycle was characterized by relaxed temporal synchronization between individuals during the autumn-winter period, with maximum variation at the arrival in the wintering area. Synchronization increased in spring, with minimum time variation at arrival in the breeding area. This suggests that arrival date in the breeding area is under strong stabilizing selection, while there is room for more flexibility in autumn and arrival to the wintering area. The details of the fast non-stop flights remain to be elucidated, but the identification of the main stopover and wintering areas is important for future conservation work on this red-listed bird species.