An Irish Wolfhound is judged during the third day of the Crufts Dog Show in Birmingham, Britain, March 9, 2019. REUTERS/Hannah McKay

An Irish Wolfhound is judged during the third day of the Crufts Dog Show in Birmingham, Britain, March 9, 2019. REUTERS/Hannah McKay

Britain's Catherine, Duchess of Cambridge attaches shamrock to the collar of mascot Irish Wolfhound Domhnall at the presentation of Shamrock to the 1st Battalion Irish Guards, at a St Patrick's Day parade at Cavalry Barracks in Hounslow, London, Britain March 17, 2018. Andrew Parsons/Pool via Reuters

An Irish Wolfhound participates in the St. Patrick's Day parade in Dublin, Ireland, March 17, 2018. REUTERS/Clodagh Kilcoyne

Britain's Catherine, Duchess of Cambridge strokes mascot Irish Wolfhound, Domhnall, as she attends the presentation of Shamrock to the 1st Battalion Irish Guards, at a St Patrick's Day parade at Cavalry Barracks in Hounslow, London, Britain March 17, 2018. Andrew Parsons/Pool via Reuters

Britain's Catherine, Duchess of Cambridge strokes mascot Irish Wolfhound, Domhnall, as she attends the presentation of Shamrock to the 1st Battalion Irish Guards, at a St Patrick's Day parade at Cavalry Barracks in Hounslow, London, Britain March 17, 2018. Andrew Parsons/Pool via Reuters

Britain's Catherine, Duchess of Cambridge strokes mascot, Irish Wolfhound, Domhnall, at the presentation of Shamrock to the 1st Battalion Irish Guards, at a St Patrick's Day parade at Cavalry Barracks in Hounslow, London, Britain March 17, 2018. REUTERS/Henry Nicholls

Irish Wolfhounds rest during the second day of the Crufts Dog Show in Birmingham, Britain March 9, 2018. REUTERS/Darren Staples

An Irish Wolfhound is shown during the second day of the Crufts Dog Show in Birmingham, Britain March 9, 2018. REUTERS/Darren Staples

An Irish Wolfhound is shown during the second day of the Crufts Dog Show in Birmingham, Britain March 9, 2018. REUTERS/Darren Staples

Irish Wolfhounds and a Dachshund arrive for the second day of the Crufts Dog Show in Birmingham, Britain March 9, 2018. REUTERS/Darren Staples

Irish Wolfhounds and Dachshunds arrive for the second day of the Crufts Dog Show in Birmingham, Britain March 9, 2018. REUTERS/Darren Staples

A guardsman of the Irish Guards walks with an Irish wolfhound during the Colonel's Review ceremony at Horse Guards Parade in London, Britain June 10, 2017. REUTERS/Stefan Wermuth

Britain's Catherine the Duchess of Cambridge attaches shamrock to the regimental mascot, an Irish Wolfhound called Domhnall, during a visit the Irish Guards to mark St Patrick's Day at their barracks in London, March 17, 2017. REUTERS/Peter Nicholls

Britain's Catherine the Duchess of Cambridge attaches shamrock to the regimental mascot, an Irish Wolfhound called Domhnall, during a visit the Irish Guards to mark St Patrick's Day at their barracks in London, March 17, 2017. REUTERS/Peter Nicholls

A member of the Irish guards walks regimental mascot, and Irish Wolfhound named Domhnall as they prepare for a visit by Britain's Prince William and Catherine the Duchess of Cambridge to mark St Patrick's Day at their barracks in London, March 17, 2017. REUTERS/Peter Nicholls

A members of the Irish guards walks regimental mascot, and Irish Wolfhound named Domhnall as they prepare for a visit by Britain's Prince William and Catherine the Duchess of Cambridge to mark St Patrick's Day at their barracks in London, March 17, 2017. REUTERS/Peter Nicholls

A members of the Irish guards walks regimental mascot, and Irish Wolfhound named Domhnall as they prepare for a visit by Britain's Prince William and Catherine the Duchess of Cambridge to mark St Patrick's Day at their barracks in London, March 17, 2017. REUTERS/Peter Nicholls

A man shows an Irish Wolfhound during the first day of the Crufts Dog Show in Birmingham, Britain March 9, 2017. REUTERS/Darren Staples TPX IMAGES OF THE DAY

An Irish Wolfhound looks at a Dachshund during the first day of the Crufts Dog Show in Birmingham, Britain March 9, 2017. REUTERS/Darren Staples

A man shows an Irish Wolfhound looks at a Dachshund during the first day of the Crufts Dog Show in Birmingham, Britain March 9, 2017. REUTERS/Darren Staples

A man waits to show an Irish Wolfhound during the first day of the Crufts Dog Show in Birmingham, Britain March 9, 2017. REUTERS/Darren Staples

An Irish Wolfhound (L) and a Borzoi (R) stand near each other before competition at the 141st Westminster Kennel Club Dog Show in New York City, U.S., February 13, 2017. REUTERS/Mike Segar

Rebecca Smith poses for a photograph during winter solstice with her Irish Wolfhound dog called Amazing Grace at the 5000 year old stone age tomb of Newgrange in the Boyne Valley at sunrise in Newgrange, Ireland, December 21, 2016. REUTERS/Clodagh Kilcoyne

Irish Wolfhound dogs are seen during winter solstice at the 5000 year old stone age tomb of Newgrange in the Boyne Valley at sunrise in Newgrange, Ireland, December 21, 2016. REUTERS/Clodagh Kilcoyne

Irish Wolfhound dogs are seen during winter solstice at the 5000 year old stone age tomb of Newgrange in the Boyne Valley at sunrise in Newgrange, Ireland, December 21, 2016. REUTERS/Clodagh Kilcoyne

Rebecca Smith poses for a photograph during winter solstice with her Irish Wolfhound dog called Amazing Grace at the 5000 year old stone age tomb of Newgrange (not in view) in the Boyne Valley at sunrise in Newgrange, Ireland, December 21, 2016. REUTERS/Clodagh Kilcoyne TPX IMAGES OF THE DAY

Irish Wolfhound dogs are seen during winter solstice at the 5000 year old stone age tomb of Newgrange (not in view) in the Boyne Valley at sunrise in Newgrange, Ireland, December 21, 2016. REUTERS/Clodagh Kilcoyne

Britain's Catherine, Duchess of Cambridge, presents a sprig of shamrock to the mascot of the 1st Battalion Irish Guards, an Irish Wolfhound called Domhnall, during a visit with her husband, Prince William, to a St Patrick's Day Parade at Mons Barracks in Aldershot, southern England March 17, 2015. REUTERS/Eddie Mulholland/pool (BRITAIN - Tags: ROYALS ENTERTAINMENT MILITARY)

Britain's Catherine, Duchess of Cambridge, smiles after presenting a sprig of shamrock to the mascot of the 1st Battalion Irish Guards, an Irish Wolfhound called Domhnall, during a visit with her husband, Prince William (2nd L), to a St Patrick's Day Parade at Mons Barracks in Aldershot, southern England March 17, 2015. REUTERS/Toby Melville (BRITAIN - Tags: ROYALS POLITICS MILITARY ENTERTAINMENT)

Britain's Catherine, Duchess of Cambridge, presents a sprig of shamrock to the mascot of the 1st Battalion Irish Guards, an Irish Wolfhound called Domhnall, during a visit with her husband, Prince William (2nd L), to a St Patrick's Day Parade at Mons Barracks in Aldershot, southern England March 17, 2015. REUTERS/Toby Melville (BRITAIN - Tags: ROYALS POLITICS MILITARY ENTERTAINMENT TPX IMAGES OF THE DAY)

Britain's Catherine, Duchess of Cambridge pats the mascot of the 1st Battalion Irish Guards, an Irish Wolfhound called Domhnall, after presenting him with a sprig of shamrock during a visit with her husband, Prince William (L), to a St Patrick's Day Parade at Mons Barracks in Aldershot, southern England March 17, 2014. Prince William attended the Parade as Colonel of the Regiment, and the Duchess presented the traditional sprigs of shamrocks to the Officers and Guardsmen of the Regiment. REUTERS/Bradley Page/Pool (BRITAIN - Tags: ENTERTAINMENT MILITARY SOCIETY ROYALS)

Britain's Catherine, Duchess of Cambridge presents a sprig of shamrock to the mascot of the 1st Battalion Irish Guards, an Irish Wolfhound called Domhnall, during a visit with her husband, Prince William, to a St Patrick's Day Parade at Mons Barracks in Aldershot, southern England March 17, 2014. Prince William attended the Parade as Colonel of the Regiment, and the Duchess presented the traditional sprigs of shamrocks to the Officers and Guardsmen of the Regiment. REUTERS/Bradley Page/Pool (BRITAIN - Tags: ENTERTAINMENT MILITARY SOCIETY ROYALS)

Britain's Catherine, Duchess of Cambridge presents a sprig of shamrock to the mascot of the 1st Battalion Irish Guards, an Irish Wolfhound called Domhnall, during a visit with her husband, Prince William, to a St Patrick's Day Parade at Mons Barracks in Aldershot, southern England March 17, 2014. Prince William attended the Parade as Colonel of the Regiment, and the Duchess presented the traditional sprigs of shamrocks to the Officers and Guardsmen of the Regiment. REUTERS/Bradley Page/Pool (BRITAIN - Tags: ENTERTAINMENT MILITARY SOCIETY ROYALS)

Britain's Catherine, Duchess of Cambridge speaks to the handler of the mascot of the 1st Battalion Irish Guards, an Irish Wolfhound called Domhnall, after presenting him with a sprig of shamrock during a visit with her husband, Prince William, to a St Patrick's Day Parade at Mons Barracks in Aldershot, southern England March 17, 2014. Prince William attended the Parade as Colonel of the Regiment, and the Duchess presented the traditional sprigs of shamrocks to the Officers and Guardsmen of the Regiment. REUTERS/Bradley Page/Pool (BRITAIN - Tags: ENTERTAINMENT MILITARY SOCIETY ROYALS)

Britain's Catherine, Duchess of Cambridge strokes the mascot of the 1st Battalion Irish Guards, an Irish Wolfhound called Domhnall, after presenting him with shamrocks during a visit with her husband, Prince William, to a St Patrick's Day Parade at Mons Barracks in Aldershot, southern England March 17, 2014. Prince William attended the Parade as Colonel of the Regiment, and the Duchess presented the traditional sprigs of shamrocks to the Officers and Guardsmen of the Regiment. REUTERS/Luke MacGregor (BRITAIN - Tags: ENTERTAINMENT MILITARY SOCIETY ROYALS)

Britain's Catherine, Duchess of Cambridge strokes the mascot of the 1st Battalion Irish Guards, an Irish Wolfhound called Domhnall, after presenting him with shamrocks during a visit with her husband, Prince William, to a St Patrick's Day Parade at Mons Barracks in Aldershot, southern England March 17, 2014. Prince William attended the Parade as Colonel of the Regiment, and the Duchess presented the traditional sprigs of shamrocks to the Officers and Guardsmen of the Regiment. REUTERS/Luke MacGregor (BRITAIN - Tags: ENTERTAINMENT MILITARY SOCIETY ROYALS)

Britain's Catherine, Duchess of Cambridge strokes the mascot of the 1st Battalion Irish Guards, an Irish Wolfhound called Domhnall, after presenting him with shamrocks during a visit with her husband, Prince William, to a St Patrick's Day Parade at Mons Barracks in Aldershot, southern England March 17, 2014. Prince William attended the Parade as Colonel of the Regiment, and the Duchess presented the traditional sprigs of shamrocks to the Officers and Guardsmen of the Regiment. REUTERS/Luke MacGregor (BRITAIN - Tags: ENTERTAINMENT MILITARY SOCIETY ROYALS)

An Irish Wolfhound is judged during competition at the Hound group during day one of judging of the 2014 Westminster Kennel Club Dog Show in New York February 10, 2014. Nearly 3,000 dogs and their handlers hit the competition floor in New York on Monday at Madison Square Garden, which will send winners of seven groups to determine this year's champion. REUTERS/Eduardo Munoz (UNITED STATES - Tags: ANIMALS SOCIETY)

An Irish Wolfhound is groomed in the penning area during day one of judging of the 2014 Westminster Kennel Club Dog Show in New York February 10, 2014. REUTERS/Eduardo Munoz (UNITED STATES - Tags: ANIMALS SOCIETY)

Britain's Catherine, Duchess of Cambridge presents shamrock to the mascot of the 1st Battalion Irish Guards, an Irish wolfhound called Domhnall, as she attends a St Patrick's Day Parade at Mons Barracks in Aldershot, southern England March 17, 2013. Prince William attended the Parade as Colonel of the Regiment, and the Duchess presented the traditional sprigs of shamrocks to the Officers and Guardsmen of the Regiment. REUTERS/Toby Melville (BRITAIN - Tags: ANNIVERSARY ENTERTAINMENT MILITARY SOCIETY ROYALS)

Britain's Catherine, Duchess of Cambridge presents shamrock to the mascot of the 1st Battalion Irish Guards, an Irish wolfhound called Domnhall, as she attends a St Patrick's Day Parade at Mons Barracks in Aldershot, southern England March 17, 2013. REUTERS/Kieran Doherty (BRITAIN - Tags: ANNIVERSARY ENTERTAINMENT MILITARY SOCIETY ROYALS)

Britain's Catherine, Duchess of Cambridge presents shamrock to the mascot of the 1st Battalion Irish Guards, an Irish wolfhound called Domnhall, as she attends a St Patrick's Day Parade at Mons Barracks in Aldershot, southern England March 17, 2013. REUTERS/Kieran Doherty (BRITAIN - Tags: ANNIVERSARY ENTERTAINMENT MILITARY SOCIETY ROYALS)

Irish Wolfhounds are judged during the first day of the Crufts Dog Show in Birmingham, central England March 7, 2013. REUTERS/Darren Staples (BRITAIN - Tags: ANIMALS SOCIETY)

A girl sits with an Irish Wolfhound during the first day of the Crufts Dog Show in Birmingham, central England March 7, 2013. REUTERS/Darren Staples (BRITAIN - Tags: ANIMALS SOCIETY)

A man wearing a kilt shows an Irish Wolfhound during the first day of the Crufts Dog Show in Birmingham, central England March 7, 2013. REUTERS/Darren Staples (BRITAIN - Tags: ANIMALS SOCIETY)

A woman struggles with four Irish Wolfhound dogs during the first day of the Crufts Dog Show in Birmingham, central England March 7, 2013. REUTERS/Darren Staples (BRITAIN - Tags: ANIMALS SOCIETY)

Britain's Catherine, Duchess of Cambridge presents shamrocks to the regimental mascot and members of the 1st Battalion Irish Guards during a visit to Aldershot Barracks in Aldershot, southern England March 17, 2012. During the visit, the Duchess presented shamrocks to the Irish Guards at a St Patrick's Day parade . 450 soldiers were on parade, accompanied by the regimental mascot Conmeal, an Irish wolfhound who received his own sprig of shamrock from the Duchess. REUTERS/Paul Vicente/Pool (BRITAIN - Tags: ENTERTAINMENT SOCIETY ROYALS)

Britain's Catherine, Duchess of Cambridge presents shamrocks to the regimental mascot and members of the 1st Battalion Irish Guards during a visit to Aldershot Barracks in Aldershot, southern England March 17, 2012. During the visit, the Duchess presented shamrocks to the Irish Guards at a St Patrick's Day parade . 450 soldiers were on parade, accompanied by the regimental mascot Conmeal, an Irish wolfhound who received his own sprig of shamrock from the Duchess. REUTERS/Paul Vicente/Pool (BRITAIN - Tags: ENTERTAINMENT SOCIETY ROYALS)

Britain's Catherine, Duchess of Cambridge presents shamrocks to the regimental mascot and members of the 1st Battalion Irish Guards during a visit to Aldershot Barracks in Aldershot, southern England March 17, 2012. During the visit, the Duchess presented shamrocks to the Irish Guards at a St Patrick's Day parade . 450 soldiers were on parade, accompanied by the regimental mascot Conmeal, an Irish wolfhound who received his own sprig of shamrock from the Duchess. REUTERS/Paul Vicente/Pool (BRITAIN - Tags: ENTERTAINMENT SOCIETY ROYALS)

Britain's Catherine, Duchess of Cambridge presents shamrocks to members of the 1st Battalion Irish Guards during a visit to Aldershot Barracks in Aldershot, southern England March 17, 2012. During the visit, the Duchess presented shamrocks to the Irish Guards at a St Patrick's Day parade . 450 soldiers were on parade, accompanied by the regimental mascot Conmeal, an Irish wolfhound who received his own sprig of shamrock from the Duchess. REUTERS/Paul Vicente/Pool (BRITAIN - Tags: ENTERTAINMENT SOCIETY ROYALS)

An Irish Wolfhound lies on the floor during the final day of the Crufts dog show at the NEC arena in Birmingham, central England, March 11, 2012. REUTERS/Kieran Doherty (BRITAIN - Tags: ANIMALS SOCIETY TPX IMAGES OF THE DAY)

An Irish Wolfhound lies on the floor during the final day of the Crufts dog show at the NEC arena in Birmingham, central England, March 11, 2012. REUTERS/Kieran Doherty (BRITAIN - Tags: ANIMALS SOCIETY)

A guardsman of the Irish Guards walks with an Irish wolfhound past the Guards Memorial before the Colonel's Review ceremony at Horse Guards Parade in London June 4, 2011. The annual military parade and march-past by the British Army Household Division takes place a week before the Trooping of the Colour which marks Queen Elizabeth's official birthday.
REUTERS/Luke MacGregor (BRITAIN - Tags: ROYALS MILITARY SOCIETY)

Willow, an Irish Wolfhound breed, sits with its owner Donna Smith backstage at the 135th Westminster Kennel Club Dog Show in New York February 14, 2011. REUTERS/Shannon Stapleton (UNITED STATES - Tags: ANIMALS SOCIETY)

Irish Wolfshound 'Gimper' (top) lies on the ground with Cocker Spaniel 'Caio' during photo call for a dog show in Dortmund April 23, 2009. More than 6,000 dogs will compete for the title of the best pedigree hound on May 1 to 3, 2009 in Dortmund. REUTERS/Ina Fassbender (GERMANY SOCIETY ENVIRONMENT ANIMALS)

The Irish Wolfshound 'Gimper' (L) sniffs Cocker Spaniel 'Caio' during photo call for a dog show in Dortmund April 23, 2009. More than 6,000 dogs will compete for the title of the best pedigree hound on May 1 to 3, 2009 in Dortmund. REUTERS/Ina Fassbender (GERMANY)

An Irish Wolfhound named Quest is greeted by Isabel Balaman backstage during the first day of the 2009 Westminster Dog Show in New York February 9, 2009. REUTERS/Lucas Jackson (UNITED STATES)

A young boy faces off with one of the world's biggest dogs, an Irish wolfhound, during the European dog show in Budapest October 3, 2008. Around 20,000 dogs were gathered at the show, the biggest such event in Europe. REUTERS/Laszlo Balogh (HUNGARY)

Dakota, an Irish Wolfhound, gets brushed out by handler Jill Maloney at the Hotel Pennsylvania in New York February 9, 2008, before the Westminster Kennel Club Dog Show which begins next week. REUTERS/Carlo Allegri (UNITED STATES)