2011 44¢ & 11¢ Semipostal - Save Vanishing Species
US #B4 is a US Semipostal that raised funds for Wildlife Without Borders.

On December 28, 1973, President Richard Nixon signed the Endangered Species Act into law in an effort to protect threatened species from extinction.

Throughout the late 1800s and early 1900s, people around the globe grew increasingly concerned about the plight of animals nearing extinction. As the bison neared extinction and the passenger pigeon disappeared, people began calling for wildlife conservation. Proponents of the conservation movement introduced the larger American public to the idea of extinction.

1996 32¢ Endangered Species
US #3105 honors 15 endangered species.

These animals were dropping in numbers due to many factors. Many were hunted for food, study, and personal or museum collections, while a large number of birds were killed for their feathers to adorn hats. Additionally, towns, cities, and farms expanded, encroaching on their habitats, while pesticides and non-native species added to the burden.

2023 Endangered Species
US #5799 – Sheet issued for the 50th anniversary of the Endangered Species Act

The first major step taken in the US was the Lacey Act of 1900. This was the first federal law to regulate commercial animal markets. It made it illegal to sell animals between states that violated state game laws. In the coming years, more laws were passed to protect animals, including the Migratory Bird Conservation Act of 1929 and the Bald Eagle Protection Act of 1940.

1996 20¢/32¢ Combo PC/15 Endangered Species
US #UX264-78 – Endangered Species Postal Cards

Another major victory came with the Endangered Species Preservation Act of 1966. This act established a list of native US animal species that were endangered and provided limited protections for them. This act also allowed the Fish and Wildlife Service and federal land agencies to set aside habitats for the affected species. The first list appeared in 1967 and included 14 mammals, 36 birds, 6 reptiles and amphibians, and 22 fish.

1979 15¢ Endangered Flora
US #1783-86 honors four species of endangered plants.

The Endangered Species Conservation Act later amended this law in 1969. This act allowed for additional protection of animals at risk of “worldwide extinction.” It prohibited them from being imported or sold in the US, and expanded the Lacey Act’s ban on interstate sales to include more species. The 1969 amendment also requested an international meeting for all nations to join in and adopt a worldwide treaty to protect endangered species. The conference was held in February 1973 and resulted in the Convention on International Trade of Endangered Species of Wild Fauna and Flora (CITES).

1995 32¢ Richard Nixon
US #2955 – Nixon signed the act into law on this day in 1973.

Also in 1973, President Richard Nixon announced that he believed the current conservation laws weren’t strong enough and encouraged Congress to pass more wide-reaching and effective legislation. Congress enlisted the help of lawyers and scientists to pen a brand new Endangered Species Act (ESA). Nixon approved it and signed it into law on December 28, 1973. The ESA helped to completely shift the way environmental protection was handled in the US. Notably, the act’s goal was to protect the species as well as their ecosystems.

2000 33¢ Celebrate the Century - 1990s: Recovering Species
US #3191g honors the recovery of some species in the 1990s.

Today the ESA protects over 2,300 species. In the years since its passage, over 50 species have been de-listed because their numbers have recovered due to conservation efforts.

Click here for more Endangered Species stamps.

Click here to read the Endangered Species Act.

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  1. All of us, well most of us, want to help conserve species such as elephants, tigers, whales, and other megafauna. An organization exists that is dedicated to conserving invertebrate species that are often overlooked. It is the Xerces Society which is named after a now extinct butterfly. Their motto is protecting life that protects us.

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