Workers abseil down the Grade II listed Snowdon Aviary at the ZSL London Zoo, to remove the 200 steel mesh panels that wrap around the structure which has stood unchanged for 50 years, as part of a restoration project that will see the aviary transformed in to a new home for a troop of eastern black and white colobus monkeys, in London, Britain, July 30, 2021. REUTERS/Henry Nicholls

Workers abseil down the Grade II listed Snowdon Aviary at the ZSL London Zoo, to remove the 200 steel mesh panels that wrap around the structure which has stood unchanged for 50 years, as part of a restoration project that will see the aviary transformed in to a new home for a troop of eastern black and white colobus monkeys, in London, Britain, July 30, 2021. REUTERS/Henry Nicholls

Workers abseil down the Grade II listed Snowdon Aviary at the ZSL London Zoo, to remove the 200 steel mesh panels that wrap around the structure which has stood unchanged for 50 years, as part of a restoration project that will see the aviary transformed in to a new home for a troop of eastern black and white colobus monkeys, in London, Britain, July 30, 2021. REUTERS/Henry Nicholls

Workers abseil down the Grade II listed Snowdon Aviary at the ZSL London Zoo, to remove the 200 steel mesh panels that wrap around the structure which has stood unchanged for 50 years, as part of a restoration project that will see the aviary transformed in to a new home for a troop of eastern black and white colobus monkeys, in London, Britain, July 30, 2021. REUTERS/Henry Nicholls

Workers abseil down the Grade II listed Snowdon Aviary at the ZSL London Zoo, to remove the 200 steel mesh panels that wrap around the structure which has stood unchanged for 50 years, as part of a restoration project that will see the aviary transformed in to a new home for a troop of eastern black and white colobus monkeys, in London, Britain, July 30, 2021. REUTERS/Henry Nicholls

Workers abseil down the Grade II listed Snowdon Aviary at the ZSL London Zoo, to remove the 200 steel mesh panels that wrap around the structure which has stood unchanged for 50 years, as part of a restoration project that will see the aviary transformed in to a new home for a troop of eastern black and white colobus monkeys, in London, Britain, July 30, 2021. REUTERS/Henry Nicholls

Warren Snowdon, 50, and his wife Sonya view land abutting their family's property, which is planned for development of Piedmont Lithium's mine in Gaston County, North Carolina, U.S., July 15, 2021. Picture taken July 15, 2021. REUTERS/Ernest Scheyder

Warren Snowdon, 50, views land abutting his family's property, which is planned for development of Piedmont Lithium's mine in Gaston County, North Carolina, U.S., July 15, 2021. Picture taken July 15, 2021. REUTERS/Ernest Scheyder

Informational signs hang on a gate in the Pen y Pass at the foot of Mount Snowdon on the first weekend of Snowdonia National Park being reopened as restrictions are eased following the coronavirus disease (COVID-19) outbreak near Llanberis, Wales, Britain July 11, 2020. REUTERS/Carl Recine

A car drives on a road in the Pen y Pass at the foot of Mount Snowdon on the first weekend of Snowdonia National Park being reopened as restrictions are eased following the coronavirus disease (COVID-19) outbreak near Llanberis, Wales, Britain July 11, 2020. REUTERS/Carl Recine

A sign is pictured at a car park as people walk amongst parked cars in the Pen y Pass at the foot of Mount Snowdon on the first weekend of Snowdonia National Park being reopened as restrictions are eased following the coronavirus disease (COVID-19) outbreak near Llanberis, Wales, Britain July 11, 2020. REUTERS/Carl Recine

Men walk amongst cars parked in a car park in the Pen y Pass at the foot of Mount Snowdon on the first weekend of Snowdonia National Park being reopened as restrictions are eased following the coronavirus disease (COVID-19) outbreak near Llanberis, Wales, Britain July 11, 2020. REUTERS/Carl Recine

People hike in the Pen y Pass at the foot of Mount Snowdon on the first weekend of Snowdonia National Park being reopened as restrictions are eased following the coronavirus disease (COVID-19) outbreak near Llanberis, Wales, Britain July 11, 2020. REUTERS/Carl Recine

A man sits on a rock and looks on in the Pen y Pass at the foot of Mount Snowdon on the first weekend of Snowdonia National Park being reopened as restrictions are eased following the coronavirus disease (COVID-19) outbreak near Llanberis, Wales, Britain July 11, 2020. REUTERS/Carl Recine

Informational signs hang on a gate as people hike in the Pen y Pass at the foot of Mount Snowdon on the first weekend of Snowdonia National Park being reopened as restrictions are eased following the coronavirus disease (COVID-19) outbreak near Llanberis, Wales, Britain July 11, 2020. REUTERS/Carl Recine

Mister Snowdon ridden by Shane Kelly goes on to win Betway Novices Stakes (div 1), as racing resumes behind closed doors following the outbreak of the coronavirus disease (COVID-19), Great Yarmouth, Britain, June 3, 2020. Dan Abraham/Pool via REUTERS

An empty road is pictured near Mount Snowdon in Snowdonia, as the spread of the coronavirus disease (COVID-19) continues, Wales, Britain April 25, 2020. REUTERS/Carl Recine

Britain's Queen Elizabeth talks with Dean of Westminster John Hall as she leaves a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain, April 7, 2017. REUTERS/Justin Tallis/Pool

Britain's Prince William and Prince Andrew speak with David Armstrong-Jones after attending a a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain, April 7, 2017. REUTERS/Justin Tallis/Pool

Sarah Chatto greets guests after attending a a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain, April 7, 2017. REUTERS/Justin Tallis/Pool

Britain's Queen Elizabeth speaks to David Armstrong-Jones after attending a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain, April 7, 2017. REUTERS/Justin Tallis/Pool

David Armstrong-Jones and his sister Sarah Chatto talk with guests after attending a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain, April 7, 2017. REUTERS/Justin Tallis/Pool

Britain's Queen Elizabeth embraces Margarita Armstrong-Jones as her father, David Armstrong-Jones looks on after attending a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain, April 7, 2017. REUTERS/Justin Tallis/Pool

Britain's Queen Elizabeth leaves a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain, April 7, 2017. REUTERS/Justin Tallis/Pool

Britain's Queen Elizabeth leaves a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain, April 7, 2017. REUTERS/Hannah McKay

Britain's Queen Elizabeth speaks to Serena Armstrong-Jones, David Armstrong-Jones, and Margarita Armstrong-Jones after a a Service of Thanksgiving for Lord Snowdon, at Westminster Abbey in London, Britain April 7, 2017. REUTERS/Justin Tallis/Pool

Britain's Queen Elizabeth speaks to Serena Armstrong-Jones, David Armstrong-Jones, and Margarita Armstrong-Jones after a a Service of Thanksgiving for Lord Snowdon, at Westminster Abbey in London, Britain April 7, 2017. REUTERS/Justin Tallis/Pool

Britain's Queen Elizabeth leaves a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain, April 7, 2017. REUTERS/Hannah McKay

David Armstrong-Jones leaves a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain, April 7, 2017. REUTERS/Hannah McKay

Britain's Prince William leaves a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain, April 7, 2017. REUTERS/Hannah McKay

Britain's Prince William and Prince Andrew leave a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain, April 7, 2017. REUTERS/Hannah McKay

Britain's Prince William, David Armstrong-Jones and Prince Andrew speak as they leave a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain, April 7, 2017. REUTERS/Hannah McKay

Britain's Prince Philip leaves a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain, April 7, 2017. REUTERS/Hannah McKay

Britain's Queen Elizabeth and Prince Philip leave a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain, April 7, 2017. REUTERS/Hannah McKay

Britain's Queen Elizabeth leaves a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain, April 7, 2017. REUTERS/Hannah McKay

David Armstrong-Jones speak to Britain's Queen Elizabeth and Prince Philip as they leave a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain, April , 2017. REUTERS/Hannah McKay

David Armstrong-Jones speak to Britain's Queen Elizabeth as they leave a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain, April , 2017. REUTERS/Hannah McKay

David Armstrong-Jones and Margarita Armstrong-Jones speak to Britain's Queen Elizabeth as they leave a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain, April , 2017. REUTERS/Hannah McKay

L-R David Armstrong-Jones, Margarita Armstrong-Jones, Britain's Queen Elizabeth, Prince Philip and Sarah Chatto leave a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain, April , 2017. REUTERS/Hannah McKay

L-R Serena Armstrong-Jones, David Armstrong-Jones, Margarita Armstrong-Jones, Britain's Queen Elizabeth, Prince Philip and Sarah Chatto leave a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain, April , 2017. REUTERS/Hannah McKay

Britain's Queen Elizabeth leaves a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain, April 7, 2017. REUTERS/Hannah McKay

Britain's Queen Elizabeth, Prince Philip and David Armstrong-Jones leave a Service of Thanksgiving for the life and work of Armstrong-Jones' father, Lord Snowdon, at Westminster Abbey in London, Britain, April 7, 2017. REUTERS/Hannah McKay

Britain's Queen Elizabeth and Prince Philip leave a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain, April 7, 2017. REUTERS/Hannah McKay

David Armstrong-Jones, known as David Linley, welcomes guests to a Service of Thanksgiving for the life and work of his father, Lord Snowdon, at Westminster Abbey in London, Britain April 7, 2017. REUTERS/Justin Tallis/Pool

David Armstrong-Jones, known as David Linley, welcomes a guest to a Service of Thanksgiving for the life and work of his father, Lord Snowdon, at Westminster Abbey in London, Britain April 7, 2017. REUTERS/Justin Tallis/Pool

David Armstrong-Jones, known as David Linley, attends a Service of Thanksgiving for the life and work of his father, Lord Snowdon, at Westminster Abbey in London, Britain April 7, 2017. REUTERS/Justin Tallis/Pool

Actor Stephen Fry arrives for a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain April 7, 2017. REUTERS/Justin Tallis/Pool

Playright Tom Stoppard arrives for a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain April 7, 2017. REUTERS/Justin Tallis/Pool

Frances Armstrong-Jones, daughter of Lord Snowden, and her husband Rodolphe von Hofmannsthal, arrive for a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain April 7, 2017. REUTERS/Justin Tallis/Pool

Frances Armstrong-Jones, daughter of Lord Snowden, and her husband Rodolphe von Hofmannsthal, arrive for a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain April 7, 2017. REUTERS/Justin Tallis/Pool

BBC Director General, Tony Hall arrives for a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain April 7, 2017. REUTERS/Hannah McKay

Musician Jools Holland arrives for a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain April 7, 2017. REUTERS/Hannah McKay

Writer Alan Bennett arrives for a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain April 7, 2017. REUTERS/Hannah McKay

Actor Stephen Fry arrives for a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain April 7, 2017. REUTERS/Hannah McKay

Playright Tom Stoppard arrives for a Service of Thanksgiving for the life and work of Lord Snowdon at Westminster Abbey in London, Britain April 7, 2017. REUTERS/Hannah McKay

David Armstrong-Jones attends a Service of Thanksgiving for the life and work of his father, Lord Snowdon, at Westminster Abbey in London, Britain April 7, 2017. REUTERS/Hannah McKay

Radio and television presenter Lisa Snowdon arrives for the BRIT music awards at the O2 Arena in Greenwich, London, February 25, 2015. REUTERS/Suzanne Plunkett (BRITAIN - Tags: ENTERTAINMENT)

Radio and television presenters Dave Berry and Lisa Snowdon arrive for the BRIT music awards at the O2 Arena in Greenwich, London, February 25, 2015. REUTERS/Suzanne Plunkett (BRITAIN - Tags: ENTERTAINMENT)

Residents gather to scrub away hate messages that had been scrawled in paint on the walls of a mosque and replace them with posters reading "Love your neighbour" and "You are home" in Cold Lake, Alberta October 24, 2014. The battle of words playing out on the facade of the Cold Lake Mosque follows two separate deadly attacks on Canadian soldiers this week by extremist Muslim converts, including one on Wednesday that spilled into Canada's parliament building. Cold Lake is home to a Canadian air base that has deployed fighter jets against Islamic State militants in Iraq. REUTERS/Frazer Snowdon (CANADA - Tags: RELIGION POLITICS CRIME LAW)

Graffiti covers the front of the Cold Lake Mosque, near a large Canadian air force base where CF-18 fighter jets recently departed for Iraq, in Cold Lake, Alberta October 24, 2014. REUTERS/Frazer Snowdon (CANADA - Tags: RELIGION POLITICS CRIME LAW)