Hidden Wildlife — Saguaro National Park East, 3693 S. Old Spanish Trail. Learn to look for the signs that animals leave behind. 10-10:30 a.m. July 29. 733-5153. 

Kelly Presnell / Arizona Daily Star

All events are free or included in admission or vehicle entrance fee unless otherwise noted. Parking may be additional. Bad weather may change or cancel activity. Children must be accompanied by an adult. No pets unless otherwise specified.

OUTDOORS AND RECREATION 

Birding Agua Caliente Park — Roy P. Drachman-Agua Caliente Regional Park, 12325 E. Roger Road. Take a guided walk to look for warblers, flycatchers, hummingbirds, orioles and vireos. Binoculars available. Online registration required. 7:30-9 a.m. July 27 and Aug. 3. 615-7855.

Bugs and Blacklights — Tucson Mountain Park, Pima County Desert Discovery Center, 7798 W. Gates Pass Road. Join a Pima County naturalist to see moths, beetles and other animals. Bring a headlamp or flashlight. 7:30-9:30 p.m. July 28. 615-7855.

Guided Hike — Mt. Lemmon Marshall Gulch Trailhead, milepost 25.5. Sabino Canyon Volunteer naturalist lead a 6 mile hike with an elevation gain of 1000 feet. 9 a.m.-2 p.m. July 28. 749-8700.

Back to School Fun Day — Southwest Community Center, 5950 S. Cardinal Ave. Food, water games and carnival games for kids to win prize tickets that can be redeemed for school supplies. Noon-4 p.m. July 29. 578-0922.

Desert Night Shift — Feliz Paseos Park, 1600 N. Camino de Oeste. Join Pima County naturalists on an easy hike to discover who is out a night. Bring a headlamp or flashlight. 7:30-9:30 p.m. July 29. 615-7855.

Hidden Wildlife — Saguaro National Park East, 3693 S. Old Spanish Trail. Learn to look for the signs that animals leave behind. 10-10:30 a.m. July 29. 733-5153.

Kick the Colorado River Habit — Kirk-Bear Canyon Library, 8959 E. Tanque Verde Road. Learn ways to shift a lifestyle and live more sustainably in the desert southwest. Ages 13 and up. 2-3 p.m. July 29. 594-5275.

Monsoon Mysteries — Himmel Park Public Library, 1035 N. Treat Ave. Events that occur during monsoon, including weather and how plants and animals respond. 2-3 p.m. July 29. 615-7855.

Bird Walk — Environmental Operations Park, Hwy. 90 east of Sierra Vista. A two hour walk led by docents from Southeastern Arizona Bird Observatory and the Friends of the San Pedro River. Suitable footwear. 7-9 a.m. July 30. Donations accepted. 459-2555.

Easy Being Green — Saguaro National Park East. A walk to learn how plants get by with little rain. 10-10:30 a.m. July 30. 733-5153.

Morning Bird Walks  — Sweetwater Wetlands, 2511 W. Sweetwater Drive. Join an Audubon Society staff member on a two hour, 1 mile easy hike to see waterfowl, warblers and other species hiding in the reeds. 6-8 a.m. Aug. 2. 209-1811.

Guided Hike — Mt. Lemmon Marshall Gulch Trailhead, Catalina Highway milepost 25.5. A 4.4 mile hike guided by Sabino Canyon Volunteer Naturalists with some steep spots with lots of shade along the way. Elevation gain of 900 feet. 9 a.m.-2 p.m. Aug. 4. 749-8700.