Senate Memorial 25 requests the New Mexico Department of Game and Fish to conduct a historical study on a rare herd of sheep known as "New Mexico Dahl heritage sheep," located at the Terra Patre heritage farm and ranch in Belen. The study aims to determine the historical significance of these sheep to New Mexico and to provide recommendations for their management and preservation. The findings are to be reported to the appropriate interim legislative committee by October 15, 2026.

The memorial highlights the efforts of Donald A. Chavez y Gilbert, a sixteenth-generation rancher, who has advocated for the recognition of these sheep for nearly forty years. He claims that they are descendants of livestock brought by Spanish settlers in the 1500s and are genetically linked to the "lost sheep of Coronado." Genetic testing has indicated that these sheep are closely related to ancient Spanish breeds, supporting the idea of their historical lineage. The memorial also calls for copies to be sent to the director of the Department of Game and Fish and the relevant legislative committee.