# 5799s - 2023 First-Class Forever Stamp - Endangered Species: Bighorn Sheep

U.S. #5799s
2023 Desert Bighorn Sheep – Endangered Species

• Part of the Endangered Species set celebrating the 50^th anniversary of the Endangered Species Act
• Design pictures a photograph by Joel Sartore’s famous “Photo Ark” project

Stamp Category:  Commemorative
Set:  Endangered Species
Value:  63¢, First Class Mail Rate (Forever)
First Day of Issue:  May 19, 2023
First Day City:  Wall, South Dakota
Quantity Issued:  30,000,000
Printed by:  Banknote Corporation of America
Printing Method:  Offset, Flexographic
Format:  Panes of 20
Tagging:  Phosphor tagged paper

Why the stamp was issued:  To commemorate the 50^th anniversary of the Endangered Species Act and the endangered desert bighorn sheep.

About the stamp design:  Like the others in the set, the photograph on the stamp is from Joel Sartore’s famous “Photo Ark” project.  They are among over 13,000 the National Geographic photographer has taken in his quest to shoot photos of as many animal species as possible.

Special design details:  Stamp includes “Endangered” and the common name of the species.

First Day City:  First Day of Issue Ceremony was in Wall, South Dakota, at the National Grasslands Visitor Center.  The center encourages visitors to see the 20 National Grasslands and Midewin National Tallgrass Prairie.  These habitats are home to the black-footed ferret, one of the endangered species pictured in the set of stamps.

About the Endangered Species set:  The Endangered Species Act of 1973 (ESA) was signed into law by President Richard Nixon on December 28.  The legislation “protect[s] species and the ecosystems upon which they depend,” with a goal “to halt and reverse the trend toward species extinction, whatever the cost.”  The ESA is jointly administered by the United States Fish and Wildlife Service and National Marine Fisheries Service.

In 2023, the US Postal Service celebrated the 50^th anniversary of the ESA with a set of 20 Forever stamps.  The stamps were issued on Endangered Species Day, which lands on the third Friday in May.  Each design pictures a different endangered species, representing only a small handful of the over 1,300 plants and animals protected under the ESA as of 2023.  The images used for the stamps were part of Joel Sartore’s “Photo Ark.”  Partnering with National Geographic, he set out to capture 20,000 species living in zoos and wildlife sanctuaries around the world.  Together, they are determined to intimately picture each species in order to educate and bring awareness to their preservation.  Sartore calls his work as a photographer a “mission to document endangered species and landscapes in order to show a world worth saving.”

Thanks to the ESA, many plant and animal species that were once endangered have made a comeback.  With the continued effort of conservationists, volunteers, and increased awareness, even more species can make their way back from the brink of extinction one day.

History the stamp represents:  The desert bighorn sheep (ovis canadensis nelson) is a subspecies of bighorn sheep found in the deserts of the southwestern United States and northwestern Mexico.  The subspecies (along with over 100 other plants and animals) was named after American naturalist Edward William Nelson.  Populations of desert bighorn sheep decreased dramatically as more settlers came to the American Southwest.  They were negatively affected by overhunting, competition with livestock, loss of watering holes, and more.  Cabeza Prieta National Wildlife Refuge, Kofa National Wildlife Refuge, and San Andres National Wildlife Refuge were all created to help protect their populations.

Desert bighorn sheep are similar to other bighorn sheep in appearance and behavior.  One big difference is their adaptability to living in a habitat without much water.  In fact, desert bighorn sheep can go weeks or even months without drinking water.  Instead, they rely on moisture from food or rainwater to survive.  This has allowed them to survive in areas inhospitable to other animals, including predators.

Desert bighorn sheep populations have been in recovery since the 1960s.  However, there are still several areas that need help to keep these animals from local extinction.