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How to choose just one picture from thousands

Jaime Rojo has been visiting the mountains of central Mexico for nearly two decades, and recently captured these majestic images of monarch butterfly-blanketed fir trees.

Migrating butterflies winter at the Monarch Butterfly Biosphere Reserve in Michoacán, Mexico.
ByHicks Wogan
Photographs byJaime Rojo
November 14, 2023
3 min read

When photo editor Anne Farrar considers images for publication, she says, “I’m looking for special. I’m looking for unique.” Farrar found that quality in spring 2023 when Jaime Rojo submitted tens of thousands of recent images of monarch butterflies.

For almost 20 years, Rojo has been visiting the forested mountains in central Mexico where North America’s eastern populations of the migratory insect spend winters. The photographer is “immensely knowledgeable about this location and the butterflies themselves,” Farrar says, and that familiarity helps his pictures outshine those of tourists allowed a few minutes at the site. After reviewing every one of Rojo’s images and consulting with him, Farrar arrived at about 20 final images for a story in next month’s issue and the selection below for the 2023 Pictures of the Year feature.

Streaked with sunlight and crowded together for warmth in winter, monarch butterflies blanket fir trees in El Rosario Sanctuary. Rojo received special permits to work outside the sanctuary’s operating hours. He made this photograph shortly before sunset.
Incredible Animal Journeys follows the the monarch butterfly on a multigenerational mission to give her great grandchildren the best start in life and premieres on November 19th on National Geographic and streams November 20th on Disney+ and Hulu.
This story appears in the December 2023 issue of National Geographic magazine.