A grey heron is seen at the Sempione park, after Lombardy was downgraded from a red to an orange zone, loosening the coronavirus disease (COVID-19) restrictions including allowing non-essential shops to re-open, in Milan, Italy, April 13, 2021. REUTERS/Flavio Lo Scalzo

People exercise near a grey heron at the Sempione park, after Lombardy was downgraded from a red to an orange zone, loosening the coronavirus disease (COVID-19) restrictions including allowing non-essential shops to re-open, in Milan, Italy, April 13, 2021. REUTERS/Flavio Lo Scalzo

A grey heron is seen at the Sempione park, after Lombardy was downgraded from a red to an orange zone, loosening the coronavirus disease (COVID-19) restrictions including allowing non-essential shops to re-open, in Milan, Italy, April 13, 2021. REUTERS/Flavio Lo Scalzo TPX IMAGES OF THE DAY

A man wearing a face mask takes a rest near a grey heron at the Sempione park, after Lombardy was downgraded from a red to an orange zone, loosening the coronavirus disease (COVID-19) restrictions including allowing non-essential shops to re-open, in Milan, Italy, April 13, 2021. REUTERS/Flavio Lo Scalzo

A grey heron is seen at the Sempione park, after Lombardy was downgraded from a red to an orange zone, loosening the coronavirus disease (COVID-19) restrictions including allowing non-essential shops to re-open, in Milan, Italy, April 13, 2021. REUTERS/Flavio Lo Scalzo

A grey heron is seen at the Sempione park, after Lombardy was downgraded from a red to an orange zone, loosening the coronavirus disease (COVID-19) restrictions including allowing non-essential shops to re-open, in Milan, Italy, April 13, 2021. REUTERS/Flavio Lo Scalzo

A Great Blue Heron is seen in a waterway near Port Manatee waterway, just a few miles away from a wastewater reservoir on the site of a defunct phosphate plant, which leaky containment wall forced an evacuation order for hundreds of homes and threatened to flood the area and Tampa Bay with polluted water, in Piney Point, Florida, U.S. April 6, 2021. REUTERS/Octavio Jones.

A Great Blue Heron is seen in mangroves near Port Manatee waterway, just a few miles away from a wastewater reservoir on the site of a defunct phosphate plant, which leaky containment wall forced an evacuation order for hundreds of homes and threatened to flood the area and Tampa Bay with polluted water, in Piney Point, Florida, U.S. April 6, 2021. REUTERS/Octavio Jones.

A heron flies with the sun in the background in Veria, Greece, March 17, 2021. Picture taken March 17, 2021. REUTERS/Alkis Konstantinidis

A heron flies over a tree full of nests in Veria, Greece, March 17, 2021. Picture taken March 17, 2021. REUTERS/Alkis Konstantinidis

A heron stands on a tree next to a nest in Veria, Greece, March 17, 2021. Picture taken March 17, 2021. REUTERS/Alkis Konstantinidis

A heron flies over a tree full of nests in Veria, Greece, March 17, 2021. Picture taken March 17, 2021. REUTERS/Alkis Konstantinidis

A heron sits in a nest in Veria, Greece, March 17, 2021. Picture taken March 17, 2021. REUTERS/Alkis Konstantinidis

Soccer Football - Brasileiro Championship - Internacional v Goias - Beira Rio Stadium, Porto Alegre, Brazil - January 10, 2021 Goias' Heron Crespo in action REUTERS/Diego Vara

A heron is seen sitting on a rock as a heavy lifting tanker is seen at sunset in Galway bay during the government's highest level of lockdown restrictions, Level 5, as the coronavirus disease (COVID-19) outbreak continues in Galway, Ireland, November 5, 2020. REUTERS/Clodagh Kilcoyne

A heron is pictured on the River Wear in Durham, Britain June 25, 2020. REUTERS/Lee Smith

A heron is pictured on the River Wear in Durham, Britain June 25, 2020. REUTERS/Lee Smith

A heron sits on a branch at loch Dunmore during hot weather near Pitlochry, Scotland, Britain, June 25, 2020. REUTERS/Russell Cheyne

A heron is pictured on the River Wear in Durham, Britain June 25, 2020. REUTERS/Lee Smith

A heron is pictured on the River Wear in Durham, Britain June 25, 2020. REUTERS/Lee Smith

A heron is pictured on the River Wear in Durham, Britain June 25, 2020. REUTERS/Lee Smith

Israeli troops detain a Palestinian during a protest against Israel's plan to annex parts of the occupied West Bank, in Heron June 19, 2020. REUTERS/Mussa Qawasma

Israeli border police members detain a Palestinian during a protest against Israel's plan to annex parts of the occupied West Bank, in Heron June 19, 2020. REUTERS/Mussa Qawasma TPX IMAGES OF THE DAY

Israeli border police members detain a Palestinian during a protest against Israel's plan to annex parts of the occupied West Bank, in Heron June 19, 2020. REUTERS/Mussa Qawasma

An Israeli flag flies over a tent erected by Jewish settlers during a Palestinian protest against Israel's plan to annex parts of the occupied West Bank, in Susya village south of Heron June 19, 2020. REUTERS/Mussa Qawasma

A boy climbs a fence pole with a Palestinian flag as the jewish settlement of Susya is seen in the background during a protest against Israel's plan to annex parts of the occupied West Bank, in Susya village south of Heron June 19, 2020. REUTERS/Mussa Qawasma

Palestinian demonstrators are seen reflected in the glasses of an Israeli soldier during a protest against Israel's plan to annex parts of the occupied West Bank, in Susya village south of Heron June 19, 2020. REUTERS/Mussa Qawasma

A Jewish settler holds an Israeli flag as Palestinians argue with Israeli soldiers during a protest against Israel's plan to annex parts of the occupied West Bank, in Susya village south of Heron June 19, 2020. REUTERS/Mussa Qawasma

Palestinians argue with Israeli soldiers during a protest against Israel's plan to annex parts of the occupied West Bank, in Susya village south of Heron June 19, 2020. REUTERS/Mussa Qawasma

Palestinians argue with Israeli soldiers during a protest against Israel's plan to annex parts of the occupied West Bank, in Susya village south of Heron June 19, 2020. REUTERS/Mussa Qawasma

Palestinians argue with Israeli soldiers during a protest against Israel's plan to annex parts of the occupied West Bank, in Susya village south of Heron June 19, 2020. REUTERS/Mussa Qawasma

A grey heron flies over a tree as other birds sit in their nests in Almaty region, Kazakhstan June 4, 2020. REUTERS/Pavel Mikheyev

A grey heron flies in the sky, with a full moon seen behind, in Almaty region, Kazakhstan June 4, 2020. REUTERS/Pavel Mikheyev

A heron is pictured in St James's Park, London, Britain, May 14, 2020. REUTERS/John Sibley

Herons sit on a pile at a garbage dump on the outskirts of the city, as the coronavirus disease (COVID 19) continues in Mexico City, Mexico April 27, 2020. REUTERS/Carlos Jasso

A squacco heron (Ardeola ralloides) is pictured in Ammiq Wetland, in Lebanon's eastern Bekaa valley, Lebanon April 14, 2020. Picture taken April 14, 2020. REUTERS/Ali Hashisho

Black-crowned night herons are pictured in Ammiq Wetland, in Lebanon's eastern Bekaa valley, Lebanon April 14, 2020. Picture taken April 14, 2020. REUTERS/Ali Hashisho

Black-crowned night herons are pictured in Ammiq Wetland, in Lebanon's eastern Bekaa valley, Lebanon April 14, 2020. Picture taken April 14, 2020. REUTERS/Ali Hashisho

A heron stands on empty rowing boats at Chapultepec park as the coronavirus disease (COVID-19) outbreak continues, in Mexico City, Mexico, March 22, 2020. REUTERS/Gustavo Graf

A grey heron flies over the pond near the village of Shcharka, Belarus November 5, 2019. REUTERS/Vasily Fedosenko

Grey herons feed in the pond near the village of Shcharka, Belarus November 5, 2019. REUTERS/Vasily Fedosenko

Sadate shoots at a heron he spotted while paddling on the Ruki river near the city of Mbandaka in the Democratic Republic of the Congo, April 5, 2019. REUTERS/Thomas Nicolon SEARCH "BUSHMEAT NICOLON" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

A heron flies over the Sevres river in Vertou near Nantes, France, September 23, 2019. REUTERS/Stephane Mahe

A heron flies over the Sevres river in Vertou near Nantes, France, September 23, 2019. REUTERS/Stephane Mahe

A heron is seen near the Sevres river in Vertou near Nantes, France, September 23, 2019. REUTERS/Stephane Mahe TPX IMAGES OF THE DAY

A heron watches on as swimmers take part in the 'Swim Serpentine' event in central London, Britain, September 21, 2019. REUTERS/Henry Nicholls

XVIII Pan American Games - Lima 2019 - Basketball - Men's Semifinals, United States v Argentina - Eduardo Dibos Coliseum, Lima, Peru - August 3, 2019. Argentina's Gabriel Deck in action against Mustapha Heron of the U.S. REUTERS/Susana Vera

Swimming - 18th FINA World Swimming Championships - Men's 25km Open Water Final - Yeosu EXPO Ocean Park, Yeosu, South Korea - July 19, 2019. David Heron of the U.S. takes a drink. REUTERS/Kim Hong-Ji

A heron hunts for food as the ship Anna Maersk is docked at Roberts Bank port carrying 69 containers of mostly paper and plastic waste returned by the Philippines in Vancouver, British Columbia, Canada June 29, 2019. REUTERS/Jason Redmond

A heron hunts for food as the ship Anna Maersk is docked at Roberts Bank port carrying 69 containers of mostly paper and plastic waste returned by the Philippines in Vancouver, British Columbia, Canada June 29, 2019. REUTERS/Jason Redmond

A grey heron sits on a tree in Almaty Region, Kazakhstan April 8, 2019. REUTERS/Pavel Mikheyev

A grey heron walks on a partly frozen lake on the outskirts of Minsk, Belarus January 29, 2019. REUTERS/Vasily Fedosenko TPX IMAGES OF THE DAY

A grey heron walks on a partly frozen lake on the outskirts of Minsk, Belarus January 29, 2019. REUTERS/Vasily Fedosenko

A heron stands on a Chinampa or floating garden in Xochimilco on the outskirts of Mexico City, Mexico September 5, 2018. Picture taken September 5, 2018. REUTERS/Carlos Jasso

A heron flies next to a Chinampa, or floating garden, in Xochimilco, on the outskirts of Mexico City, Mexico, September 5, 2018. Picture taken September 5, 2018. REUTERS/Carlos Jasso

French free-climber Alain Robert, known as 'Spiderman', celebrates as he nears completing his attempt to climb up the outside of the Heron Tower in the financial district of London, Britain, October 25, 2018. REUTERS/Peter Nicholls TPX IMAGES OF THE DAY

French free-climber Alain Robert, known as 'Spiderman', celebrates as he completes his attempt to climb up the outside of the Heron Tower in the financial district of London, Britain, October 25, 2018. REUTERS/Peter Nicholls

French free-climber Alain Robert, known as 'Spiderman', celebrates as he completes his attempt to climb up the outside of the Heron Tower in the financial district of London, Britain, October 25, 2018. REUTERS/Peter Nicholls

French free-climber Alain Robert, known as 'Spiderman', celebrates as he nears completing his attempt to climb up the outside of the Heron Tower in the financial district of London, Britain, October 25, 2018. REUTERS/Peter Nicholls

Occupants of the tower watch through the windows as French free-climber Alain Robert, known as 'Spiderman', attempts to climb up the outside of the Heron Tower in the financial district of London, Britain, October 25, 2018. REUTERS/Peter Nicholls