The swan that has caused delays on the M25 is now in the hands of Berkshire charity Swan Lifeline.
The charity confirmed that the swan was taken by police to the local vets and has sustained no injuries after ending up on the motorway - causing 90 minute traffic queues.
Around 200 volunteers, up to half paddling kayaks and canoes, have been draftedin to assist with the biennial round-up of swans at Abbotsbury Swannery on Saturday.
The round-up hopes to take a snapshot of the size and health of the swan population on the Fleet Lagoon at Chesil Beach - the world’s only managed colony of mute swans.
The swans are individually checked by vets, vaccinated, ringed, weighed and measured.
"Swanherd" Dave Wheeler said: "It is an amazing sight. We estimate there are around 700 swans on the Fleet at the moment, as well as 130 cygnets in the swannery itself.
"Visitors will still be able to watch and help feed the swans at 12 noon and 4pm."
Investigations are continuing into what may have caused an oil spill which led to around 150 swans having to be rescued from the River Thames between Windsor Bridge and Eton Bridge over the weekend.
The Environment Agency has said the mystery substance could have been caused by illegal flytipping, leakage from boats or tanks, or faulty drainage.
It is hoped that the birds, which are being cared for by charity Swan Lifeline, can be released on Tuesday.
A spokesperson from the Environment Agency has said all the swans hit by a mysterious oil spill along the River Thames in Berkshire have been removed from the water. More than eighty of the birds are being cared for at a rescue centre.
The birds affected bords were found in the area between Windsor Bridge and Eton Bridge, and recovered on Friday and Saturday.
Environment Agency investigators are still trying to find the source of the oil, with possible causes ranging from flytipping, leakage from boats or tanks, to faulty drainage systems. However there are only small pockets of the substance left in the water, which makes it harder to detect the origin.
It is hoped that it will be possible to release the swans back into the River Thames in the next few days.
Hundreds of fluffy cygnets are beginning to hatch at Abbotsbury Swannery in Dorset after the first baby swan was born earlier today.
The swannery is the only place in the world where visitors can walk through a colony of mute swans, see cygnets hatching and participate in mass feedings.
Swanherds noticed the first signs of hatching when a female swan, or pen, became restless and began hovering over the nest, allowing the emerging cygnet more room to peck its way out of the egg.
Another expectant mother was recently bereaved when her mate died in a territorial dispute. Swanherds put up a fence to protect her nest and were astonished when a neighbouring male, or cob, swam downstream and "adopted" her eggs as his own.
Deputy Swanherd Steve Groves said: "Even though he is not the father of these eggs, he is behaving like he is, which is very odd - I have not seen anything like this in nearly 25 years of this work.
"This behaviour seems to go against what scientists call the ‘selfish gene’, where you would expect a cob to kill young that don’t belong to him.
"Staying true to the old adage that swans mate for life, we believe she will stay paired with him, and next year he will be able to father his own cygnets with her."
It may have been wet and cold for the rest of us, but a pair of black-necked swans at the WWT Arundel Wetland Centre produced six eggs during the recent snowy weather. The South American Swans usually begin to nest mid-winter.
Staff have given parents Arnie and Laura straw to insulate the eggs. Staff had to distract the protective male, while adding the straw.
The superviser of the ground team, Sam Halpin said: "While we had the swans away from the nest we checked the eggs. The shells are too thick to candle so we weighed them all to find that four of the eggs appear viable.”
Scientists from Oxford University have created a computerised egg to discover how cygnets develop during incubation.
Researchers will monitor the device after placing it with swans and their eggs at the Abbotsbury Swannery in Dorset.
Seventy swans have been cleaned up and are, today, being returned to the River Thames after a mystery oil spill. The birds have been looked after by volunteers of the charity Swan Lifeline.