Bat with large ears held in gloved hand
Spotted bat (Euderma maculatum) captured in Glen Canyon National Recreation Area.


Bat on log
Silver-haired Bat (Lasionycteris noctivagans)


Glen Canyon Bat Inventory & Monitoring

Since 2016, GLCA staff and citizen scientists have used a centralized monitoring method (North American Bat Monitoring Program [NABat]) to assess distribution, abundance, trends and threats of bat species susceptible to White-Nose Syndrome (WNS). The project focuses on assessing bat populations using NABat stationary and mobile acoustic surveys, WNS/Pseudogymnoascus destructans (Pd) surveillance, and enhancing WNS and bat-related education and outreach. Data collected during these efforts contribute to a statistically robust dataset, which enables researchers to make inferences about bat species distribution, abundance, and threats on local, regional, and continent-wide scales.

Between April 1st and May 31st, GLCA staffers and citizen scientists use United States Geological Survey (USGS) National Wildlife Health Center protocols to conduct early emergence WNS/Pd surveillance to track range expansion of Pd and potentially identify new bat species affected by WNS.

Between June 1st and July 31st, GLCA staffers and citizen scientists use NABat monitoring protocols to conduct stationary point and mobile acoustic transect surveys within ten 10- x 10-km grid cell sample units. These surveys enable researchers to determine status and trends in bat species susceptible to WNS. All acoustic recordings are classified with SonoBat 4 and entered into the NPS Bats Acoustic Survey Database and NABat Bat Population Database.

bat on log
Hoary Bat (Lasiurus cinereus)


Bats of Glen Canyon National Recreation Area

17 species are known to occur within the park.

  1. Pallid bat, Antrozous pallidus

  2. Townsend's big-eared bat, Corynorhinus townsendii

  3. Big brown bat, Eptesicus fuscus

  4. Spotted bat, Euderma maculatum

  5. Allen's big-eared bat, Idionycteris phyllotis

  6. Silver-haired bat, Lasionycteris noctivagans

  7. Hoary bat, Lasiurus cinereus

  8. California myotis, Myotis californicus

  9. Western small-footed myotis, Myotis ciliolabrum

  10. Western long-eared bat, Myotis evotis

  11. Fringed myotis, Myotis thysanodes

  12. Long-legged myotis, Myotis volans

  13. Yuma myotis, Myotis yumanensis

  14. Canyon bat, Parastrellus hesperus

  15. Greater mastiff bat, Eumops perotis

  16. Big free-tailed bat, Nyctinomops macrotis

  17. Brazilian free-tailed bat, Tadarida brasiliensis

Screen capture of video player featuring interview of a scientist

Outside Science (inside parks) video

In this episode of Outside Science (inside parks), spend time with interns, volunteers, and staff at Glen Canyon National Recreation Area to see how and why they study bats.

Two people smiling at night
Citizen Scientists monitor bat sounds at night.


Citizen Science

From 2016 –present, GLCA has collaborated with Grand Canyon Youth and other partners to engage volunteers in a citizen science-based acoustic bat monitoring project on multi-day river trips along the San Juan and Colorado Rivers. Since 2016, over 400 citizen scientists have learned about bat ecology, threats, and conservation. In addition, the citizen scientists learned and developed bio-acoustic monitoring skills through deploying acoustic bat detectors per National Park Service protocols. Since 2016, the citizen science project has identified 14 species of bats through acoustic monitoring including the first record of the Greater Mastiff bat within the NPS boundary.

drawing of spotted bat with banner "Bat Fest"
Glen Canyon Bat Fest! Echolocating your hearts since 2016.

NPS Graphic

Annual Glen Canyon Bat Festival

Glen Canyon National Recreation Area has partnered with Glen Canyon Conservancy to host a Bat Festival each summer since 2016. The event features crafts, games, bat house building, bat listening walks, informational booths, and guest speakers. The festival theme focuses on the ecological importance of bats in pest control, seed dispersal, and pollination and how the public can contribute to bat conservation efforts. The event typically is held the third week of July.

Cute bat plush toy hangs upside down



The Adopt-A-Bat program is a partnership between NPS and Glen Canyon Conservancy. You can help support bat conservation, research, and management at Glen Canyon by joining the Adopt-A-Bat program. The proceeds received from the program are used to support bat monitoring internships for diverse youth working on bat conservation in the park. Join the Adopt-A-Bat program at Glen Canyon Conservancy stores in Page, AZ, Carl Hayden Visitor Center, Navajo Bridge Interpretive Center, or by phone.

Last updated: September 17, 2019

Contact the Park

Mailing Address:

PO Box 1507
Page, AZ 86040


(928) 608-6200
Receptionist available at Glen Canyon Headquarters from 7 am to 4 pm MST, Monday through Friday. The phone is not monitored when the building is closed.

Contact Us