A girl holds up her hand to confront the police during a banned protest in Hong Kong on July 1, 2020. China imposed a controversial national security law on Hong Kong on Tuesday, a historic move that worried many Western governments that will strangle the finance hub's freedoms and hollow out its autonomy. (Photo by Keith Tsuji/Zuma Press/Rex Features/Shutterstock)

In this photo taken Monday, March 5, 2018, s*x worker Irene sits in her brothel in Juba, South Sudan. As World Women's Day is to be marked across the globe and women across much of the Western world have galvanized around the #MeToo movement, South Sudan remains a place where women face grinding difficulties and rights experts say most women remain voiceless. (Photo by AP Photo/Stringer)

A camel performs during a “dance competition” held during the Pushkar Camel Fair in Pushkar, in the western state of Rajasthan, on November 5, 2019. Thousands of livestock traders from the region come to the traditional camel fair where livestock, mainly camels, are traded. The annual camel and livestock fair is one of the world's largest camel fairs. (Photo by Himanshu Sharma/AFP Photo)

Anissa Barbato from New York looks out over the city from the Edge, the highest outdoor sky deck in the Western Hemisphere on September 2, 2020 as it reopened to the public in New York. Rising 1,131 feet in the air from the heart of Hudson Yards it offers 360-degree views of New York Citys iconic skyline from the 100th floor outdoor viewing. (Photo by Timothy A. Clary/AFP Photo)

Spurt, an Australian Shepherd performs a obstacle run during Wild Wild Woof A SuperDogs Country & Western Spectacle at the 2025 K-Days Festival in Edmonton, Alberta, Canada, on July 26, 2025. With fast-paced races, gold-prospecting stunts, and plenty of tail-wagging charm, the SuperDogs deliver a high-energy country show the whole family can cheer for. (Photo by Artur Widak/Anadolu via Getty Images)

People watch as leaflets dropped by the Israeli military, urging evacuation south to al-Mawasi, land in Gaza City on September 9, 2025. The Israeli military said on Tuesday that it will act with “greater force” in Gaza City and warned residents to flee, in a statement posted on X. Israel has been intensifying its bombardment of the city in preparation for an operation to take control of it, despite repeated entreaties from Western nations and aid agencies to stop. (Photo by Omar Al-Qattaa/AFP Photo)

South Korean soldiers participate in a winter river crossing operation in preparation for a possible North Korean attack on February 8, 2012 in Yeoju, South Korea. The Korean peninsula is the world's last Cold War frontier as stalinist North Korea and pro-western South Korea have been technically at war since the 1950-53 conflict. (Photo by Chung Sung-Jun/Getty Images)

Sharon Beals is a San Francisco based photographer who has photographed nest and eggs specimens collected over the last two centuries at The California Academy of Sciences, The Museum of Vertebrate Zoology, and The Western Foundation of Vertebrate Zoology. While few nests are collected today, these nests and eggs are used for research, providing important information about their builder’s habitats, DNA, diseases and other survival issues.