The Naval Facilities Engineering Command Southwest is seeking a Cooperative Agreement for Mexican Spotted Owl (MSO) surveys at the Naval Observatory Flagstaff Station in Flagstaff, Arizona. The purpose of this agreement is to conduct presence/absence surveys for MSOs at the same MSO calling stations censused from 2006 to 2023. The surveys will follow the same methodology and calling routes as described in Johnson et al. (2007) and will be designed and conducted in accordance with the current approved USFWS MSO protocol (USFWS 2003). The Cooperator will document the age, sex, and activity of all MSOs or any other owl species detected during surveys. The Cooperator must possess a current federal endangered species permit from the USFWS authorizing them to conduct MSO surveys. The close date for applications is July 17, 2024. For more information, please contact Kevin Magennis at kevin.e.magennis.civ@us.navy.mil.