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.

A pedestrian walks by an Apple Store following an announcement that Apple has become the world's most valuable brand on May 9, 2011 in San Francisco, California. In a report released by London based Millward Brown, Apple Inc. has surpassed Google to claim the top spot in a global ranking of brand value this year with an estimated value of more than $153 billion up 84 percent from last year. (Photo by Justin Sullivan/Getty Images)

Apple CEO Steve Jobs delivers the keynote address at the 2011 Apple World Wide Developers Conference at the Moscone Center on June 6, 2011 in San Francisco, California. Apple CEO Steve Jobs returned from sick leave to introduce Apple's new iCloud storage system and the next versions of Apple's iOS and Mac OSX. (Photo by Justin Sullivan/Getty Images)

Yang Estrada, 5, plays with a crab on the street in La Panchita, Cuba on May 28, 2022. (Photo by Alexandre Meneghini/Reuters)

A girl plays in a waterlogged street following a heavy monsoon rainfall in Mumbai on June 9, 2021. (Photo by Sujit Jaiswal/AFP Photo)

A man poses as his acquaintance takes pictures on a street in the town of Vyborg, Russia on January 28, 2024. (Photo by Anton Vaganov/Reuters)

Commuters make their way across a street during rainfall in New Delhi on June 27, 2024. (Photo by Arun Sankar/AFP Photo)

Street animators wearing fancy costumes take a break on a bench in a park in Stavropol, Russia on March 14, 2021. (Photo by Eduard Korniyenko/Reuters)