A pair of egrets look for food among dead trees as a forest is cleared to make way for the construction of a public housing estate in Singapore January 6, 2021. REUTERS/Edgar Su

An Intermediate Egret tries to balance itself on a bicycle tire in a canal filled with garbage near a residential area in Colombo, Sri Lanka, November 6, 2020. REUTERS/Dinuka Liyanawatte TPX IMAGES OF THE DAY

An egret along with its babies sits in its nest in a tree in Bhaktapur, Nepal May 25, 2020. REUTERS/Navesh Chitrakar

An egret feeds its baby in Bhaktapur, Nepal May 25, 2020. REUTERS/Navesh Chitrakar

Egrets fly over a herd of cattle owned by J.D. Hudgins Inc. at a ranch in this aerial image over Wharton, Texas, U.S., April 30, 2020. REUTERS/Adrees Latif

Egrets fly over a herd of cattle owned by J.D. Hudgins Inc. at a ranch in this aerial image over Wharton, Texas April 30, 2020. REUTERS/Adrees Latif

Egrets fly over a herd of cattle owned by J.D. Hudgins Inc. at a ranch in this aerial image over Wharton, Texas April 30, 2020. REUTERS/Adrees Latif

Egrets fly over a herd of cattle owned by J.D. Hudgins Inc. at a ranch in this aerial image over Wharton, Texas April 30, 2020. REUTERS/Adrees Latif

Egrets are seen next to a discarded tire on the shores of the Paraguay River, in Ita Enramada, Paraguay November 23, 2019. REUTERS/Jorge Adorno

An egret sits on a lamp post in Beppu, Japan October 8, 2019. Picture taken October 8, 2019. REUTERS/Edgar Su

An egret hunts in a Svisloch river as autumn colours are seen on foliage in Minsk, Belarus October 2, 2019. REUTERS/Vasily Fedosenko

A Great White Egret is seen near a crocodile in the Tarcoles River, a river with one of the highest crocodile population in the world, in Tarcoles, province of Puntarenas, Costa Rica, July 16, 2019. REUTERS/Juan Carlos Ulate

A cattle egret drinks water in the Nile River, in Cairo, Egypt February 10, 2019. Picture taken February 10, 2019. REUTERS/Amr Abdallah Dalsh

Cattle egrets are seen in a field at the highway which leads to the capital city of Cairo, Egypt January 30, 2019. REUTERS/Amr Abdallah Dalsh

Little egrets are seen at a fish farm at the Euphrates River in Mussayab district, Iraq November 2, 2018. Picture taken November 2, 2018. REUTERS/Alaa al-Marjani

A great egret flies at a lake near the village Sosenka, Belarus July 21, 2018. REUTERS/Vasily Fedosenko TPX IMAGES OF THE DAY

A great egret flies at a lake near the village Sosenka, Belarus July 21, 2018. REUTERS/Vasily Fedosenko

A Snowy Egret sits on a branch next to waste floating in the Mburica stream, in a neighborhood in Asuncion, Paraguay June 8, 2017. REUTERS/Jorge Adorno

A great egret feeds on the banks of the Pripyat river, near the town of Turov, Belarus May 7, 2017. REUTERS/Vasily Fedosenko

Great egrets are seen on the banks of the Pripyat river, near the town of Turov, Belarus May 7, 2017. REUTERS/Vasily Fedosenko

A great white egret carries twigs for a nest at the Smith Oaks Sanctuary in High Island, Texas, U.S. on April 16, 2017. REUTERS/Mohammad Khursheed

A great white egret takes flight at the Smith Oaks Sanctuary in High Island, Texas, U.S. on April 16, 2017. REUTERS/Mohammad Khursheed

Great white egrets build a nest at the Smith Oaks Sanctuary in High Island, Texas, U.S. on April 16, 2017. REUTERS/Mohammad Khursheed

Great white egrets hold a twig while building a nest at the Smith Oaks Sanctuary in High Island, Texas, U.S. on April 16, 2017. REUTERS/Mohammad Khursheed

A great white egret feeds its offspring at the Smith Oaks Sanctuary in High Island, Texas on April 16, 2017. REUTERS/Mohammad Khursheed

A cattle egret walks in front of a buffalo in Amboseli National Park, Kenya, March 17, 2017. Picture taken on March 17, 2017. REUTERS/Goran Tomasevic

An Egret sits near the Aber Wrac'h river on a cold winter day in Landeda, France, January 22, 2017. REUTERS/Stephane Mahe

A Great Egret flies above a fishing boat in the Sea of Galilee, northern Israel November 20, 2016. REUTERS/Ronen Zvulun SEARCH "GALILEE" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

A Cattle egret is seen at a roadside canal full of litter and waste at a canal connected to the river Nile near the the agricultural road which leads to the capital city of Cairo, Egypt December 5, 2016. REUTERS/Amr Abdallah Dalsh

Egrets are reflected in the Ana Sagar Lake on a foggy morning in Ajmer, India, November 29, 2016. REUTERS/Himanshu Sharma

An egret is seen in a channel in Rio de Janeiro, Brazil, August 23, 2016. REUTERS/Vasily Fedosenko

An egret is seen in a channel in Rio de Janeiro, Brazil, August 23, 2016. REUTERS/Vasily Fedosenko

A Cattle Egret is seen near rice seedlings at a paddy field in Qalyub, in the El-Kalubia governorate, northeast of Cairo, Egypt June 1, 2016. Picture taken June 1, 2016. To match Interview EGYPT-WHEAT/ REUTERS/Amr Abdallah Dalsh

Egrets fly at a lake near the village of Novosyolki, Belarus, June 26, 2016. REUTERS/Vasily Fedosenko

Egrets are seen at a lake near the village of Novosyolki, Belarus, June 26, 2016. REUTERS/Vasily Fedosenko

An egret flies at a lake near the village of Novosyolki, Belarus, June 26, 2016. REUTERS/Vasily Fedosenko

An egret stands in a lake near the village of Novosyolki, Belarus, June 25, 2016. REUTERS/Vasily Fedosenko

A great egret struts through a pond in New York's Central Park May 22, 2015. REUTERS/Lucas Jackson

A great egret struts through a pond in New York's Central Park May 22, 2015. REUTERS/Lucas Jackson

A great egret catches and eats a lizard at the San Diego Zoo Safari Park in San Diego, California March 13, 2015. REUTERS/Mike Blake (UNITED STATES - Tags: SOCIETY ANIMALS)

A Lesser Egret is reflected in a saltwater marsh wildlife habitat on Wallasea island, in Essex, March 13, 2014. Picture taken March 13, 2014. To match Special Report SEALEVEL-POLICY/BRITAIN REUTERS/Andrew Winning (BRITAIN - Tags: ANIMALS ENVIRONMENT)

A slow loris sits on a scale as staff measures its weight at a national forest park in Puer, Yunnan province November 16, 2014. The park for the first time measured the height and weight of six kinds of animals, including the black bear, red panda, slow loris, white-cheeked gibbon and egret, for data collection purposes. REUTERS/Wong Campion (CHINA - Tags: ANIMALS SOCIETY)

A staff member measures the height of a black bear at a national forest park in Puer, Yunnan province November 16, 2014. The park for the first time measured the height and weight of six kinds of animals, including the black bear, red panda, slow loris, white-cheeked gibbon and egret, for data collection purposes. REUTERS/Wong Campion (CHINA - Tags: ANIMALS SOCIETY TPX IMAGES OF THE DAY)

Cattle Egrets rest on telephone poles near the Jewish West Bank settlements of Yafit, north of Jericho October 22, 2014. REUTERS/Baz Ratner (WEST BANK - Tags: ANIMALS ENVIRONMENT)

An egret prepares to fly near the Galle Face beach in Colombo December 9, 2013. REUTERS/Dinuka Liyanawatte (SRI LANKA - Tags: SOCIETY ANIMALS)

An Egret sits in a canal as morning sun reflects off the mist, on Assateague Island off the Virginia Coast October 26, 2013. Many bird species make their home on Assateague on a seasonal basis, making the undeveloped island a popular destination for birdwatchers.
REUTERS/Kevin Lamarque (UNITED STATES - Tags: ENVIRONMENT ANIMALS SOCIETY TPX IMAGES OF THE DAY)

Egrets congregate on branches above a canal on Assateague Island off the Virginia Coast October 25, 2013. Many bird species make their home on Assateague on a seasonal basis, making the undeveloped island a popular destination for birdwatchers.
REUTERS/Kevin Lamarque (UNITED STATES - Tags: ENVIRONMENT ANIMALS TPX IMAGES OF THE DAY)

An egret is seen near a partially flooded field on Staten Island at the Sacramento San Joaquin River Delta near Walnut Grove, California September 4, 2013. California water officials have proposed redesigning two water diversion tunnels planned for the Delta, away from several small towns along the Sacramento River that Delta residents said would be threatened under the existing plan, and would be placed beneath Staten Island, home to a variety of wildlife. Water from the tunnels would flow to urban areas in the Silicon Valley, Los Angeles and San Diego and farmers in the San Joaquin Valley. Picture taken September 4, 2013. REUTERS/Robert Galbraith (UNITED STATES - Tags: ENVIRONMENT AGRICULTURE SOCIETY ANIMALS)

A volunteer feeds glucose water to a Cattle Egret chick at an animal hospital at Hathijan village, on the outskirts of the Western Indian city of Ahmedabad September 4, 2013. According to a veterinary doctor, at least 400 Cattle Egrets were rescued and more than 100 died on Tuesday at the site of an illegal tree cutting at Ranasan village of Sabarkantha district, about 90 km (56 miles) from Ahmedabad. REUTERS/Amit Dave (INDIA - Tags: ANIMALS ENVIRONMENT SOCIETY)

A volunteer places a Cattle Egret chick in a basket after examining it at an animal hospital at Hathijan village, on the outskirts of the Western Indian city of Ahmedabad September 4, 2013. According to a veterinary doctor, at least 400 Cattle Egrets were rescued and more than 100 died on Tuesday at the site of an illegal tree cutting at Ranasan village of Sabarkantha district, about 90 km (56 miles) from Ahmedabad. REUTERS/Amit Dave (INDIA - Tags: ANIMALS ENVIRONMENT SOCIETY)

A volunteer examines a Cattle Egret chick at an animal hospital at Hathijan village, on the outskirts of the Western Indian city of Ahmedabad September 4, 2013. According to a veterinary doctor, at least 400 Cattle Egrets were rescued and more than 100 died on Tuesday at the site of an illegal tree cutting at Ranasan village of Sabarkantha district, about 90 km (56 miles) from Ahmedabad. REUTERS/Amit Dave (INDIA - Tags: ANIMALS ENVIRONMENT SOCIETY)

Workers harvest rice crop as egrets fly in a field on the outskirts of the western Indian city of Ahmedabad May 13, 2013. India's plan to give millions more people cheap food will cost more than its forecast of 1.3 trillion rupees ($23.8 billion) a year and will accelerate inflation, a leading adviser on food issues for the government said in an interview. To match Interview INDIA/FOOD REUTERS/Amit Dave (INDIA - Tags: FOOD BUSINESS POLITICS AGRICULTURE)

An egret stands on a ship mooring rope in Rio de Janeiro March 14, 2012. REUTERS/Ricardo Moraes (BRAZIL - Tags: MARITIME ANIMALS SOCIETY)

An egret stands on a ship mooring rope in Rio de Janeiro March 14, 2012. REUTERS/Ricardo Moraes(BRAZIL - Tags: MARITIME ANIMALS SOCIETY)

A Great Egret is seen in the Gringo lake of the Serere Natural Reserve at the Madidi region some 600 km (373 miles) north of La Paz November 16, 2011. REUTERS/David Mercado (BOLIVIA - Tags: ENVIRONMENT ANIMALS)

An egret stands on garbage in the flood-swollen Chao Phraya river in Ayutthaya province October 13, 2011. At least 283 people have been killed around Thailand by heavy monsoon rain, floods and mudslides since late July and 26 of its 77 provinces are inundated, according to the Department of Disaster Prevention and Mitigation. REUTERS/Sukree Sukplang (THAILAND - Tags: ENVIRONMENT DISASTER ANIMALS)

Egrets fly over old tanks lying in an armoured vehicle "graveyard" at an Israeli army base near the southern town of Kiryat Gat May 8, 2011. The field contains some 700 decommissioned armour the Israeli military uses in training exercises and for parts and scrap. REUTERS/Amir Cohen (ISRAEL - Tags: SOCIETY MILITARY ANIMALS)

An egret flies past an area that was devastated by the March 11 earthquake and tsunami, in Watari, Miyagi prefecture, April 22, 2011. REUTERS/Toru Hanai (JAPAN - Tags: ANIMALS DISASTER ENVIRONMENT)

An egret flies past an area devastated by the March 11 earthquake and tsunami, in Watari, Miyagi prefecture, April 22, 2011. REUTERS/Toru Hanai (JAPAN - Tags: ANIMALS DISASTER ENVIRONMENT)

An egret stands amongst anemone flowers in Ben-Shemen forest, near the Israeli town of Modiin between Tel Aviv and Jerusalem, February 21, 2011. REUTERS/Ronen Zvulun (ISRAEL - Tags: ENVIRONMENT ANIMALS SOCIETY)