Birding — Historic Canoa Ranch, 5375 S. I-19 Frontage Road, Green Valley. Join a local birding expert to explore the bountiful birdlife in the Santa Cruz Valley. Reservations online pima.gov/canoaranch; click on the Register Now button at the bottom of the page. Also call 724-5220. 9-10:30 a.m. Dec. 5. Donations accepted. 724-5220.

OUTDOORS

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.

A Gneiss Walk — Sabino Canyon, 5700 N. Sabino Canyon Road. Enjoy a walk and talk about the geology led by a Sabino Canyon Volunteer Naturalist. 8:30-11 a.m. Nov. 30 and Dec. 7. 749-8700.

Birding — Pima County Agua Caliente Park, 12325 E. Roger Road. A guided walk through the park and along the ponds to see raptors, sparrows, and many other birds. Ducks should be arriving for the winter. Loaner binoculars available. Online registration required. 8:30-10 a.m. Nov. 30 and Dec. 7. 724-5375.

The Saguaro Time Hike — Saguaro National Park East, 3693 S. Old Spanish Trail. A 1.6 mile hike with one small hill climb. Ages 10 and up. 11 a.m.-1 p.m. Nov. 30. 733-5153.

Walk With The Saguaros — Saguaro National Park East. Join a naturalist for this easy walk to discover the many fascinating facts about the saguaro cactus. Suitable footwear. 10 a.m.-noon. Nov. 30. 733-5153.

Who's Who — Saguaro National Park East. A walk through the cactus garden. 3-3:30 p.m. Nov. 30. 733-5153.

Gentle Nature Walk — Sabino Canyon. Learn about the desert on a gentle walk led by a Sabino Canyon Volunteer Naturalist. 10 a.m.-noon. Dec. 1. 749-8700.

Hike  — Richard McKee Finger Rock Trailhead, 7100 N. Alvernon Way. A 2-3 mile, moderate-level hike to learn about the Catalina Bighorn Sheep Reintroduction Project to restore bighorn sheep to their historic range in the Catalina Mountains. Ages 12 and up. Online registration required. 8:30-11:30 a.m. Dec. 1. $5. 724-5375.

Paint Out in the Park — Colossal Cave Mountain Park, 16721 E. Old Spanish Trail, Vail. Join the Sonoran Plein Air Painters to learn some techniques for painting landscape scenes in the open air. Bring painting supplies. Ages 12 and up. 3-5 p.m. Dec. 1.  724-5375.

Birding — Tucson Mountain Park, Ironwood Picnic Area, 1500 S. Kinney Road at Hal Gras Road. Join a local birding expert for a guided walk to see rufous-winged sparrows, gilded flickers, phainopeplas, and many other desert birds. Online registration required. 8-10 a.m. Dec. 2. 724-5375.

Family Nature Walk — Sabino Canyon. Easy trail nature walk for the entire family. Lead by Sabino Canyon Volunteer Naturalist. 8:30-10:30 a.m. Dec. 2. 603-2912.

History Walk — Murray Springs National Historic Site, Moson Road, Sierra Vista. A docent will lead this walk, explaining the latest hypotheses on how the Clovis people got here, how they lived, and what happened to them. The walk does include a few rough steps down into a wash. Suitable footwear. 1-3 p.m. Dec. 2. Donations accepted. 459-2555.

River Walk — San Pedro House, 9800 E. Highway 90, Sierra Vista. The Friends of the San Pedro River will conduct interpretive walks to find 82 species of mammals, dozens of reptiles and amphibians and nearly 350 species of birds. Suitable footwear.  9-11 a.m. Dec. 2. Donations accepted. 459-2555.

Historic Tour — Historic Hacienda de la Canoa, 5375 S. I-19 Frontage Road, Green Valley. A walking tour of the headquarters, historic buildings, corrals and exhibits. Online registration required. 10-11:30 a.m. and noon-1:30 p.m. Dec. 2. 724-5220.

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. First-come, first served basis. 8-11 a.m. Dec. 3. Donations accepted. 459-2555.

Full Moon Nature Walk — Maeveen Behan Desert Sanctuary, 9101 N. Thornydale Road. Join a Pima County naturalist for this easy two-hour nature walk. Suitable footwear and bring a flashlight. Ages 12 and up. Online registration required. 5-7 p.m. Dec. 3. 724-5375.

Petanque in the Park — Reid Park, 830 S. Country Club Road. Learn and play the French game of petanque. 2-4 p.m. Dec. 3. 664-4133.

Birding — Historic Canoa Ranch, 5375 S. I-19 Frontage Road, Green Valley. Join a local birding expert to explore the bountiful birdlife in the Santa Cruz Valley. Reservations online pima.gov/canoaranch; click on the Register Now button at the bottom of the page. Also call 724-5220. 9-10:30 a.m. Dec. 5. Donations accepted. 724-5220.

Historic Tour — Historic Hacienda de la Canoa, 5375 S. I-19 Frontage Road, Green Valley. Join a walking tour of the ranch headquarters, historic buildings, corrals and exhibits. Online registration required. 10-11:30 a.m. and noon-1:30 p.m. Dec. 5. 724-5220.

Nature Walk: Plants and Wildlife — Sabino Canyon. Easy trails led by a Sabino Canyon Volunteer Naturalist. Meet at the flagpole in front of the Visitor Center. 8:30-11:30 a.m. Dec. 6. 749-8700.

Bird Walk — San Pedro House, 9800 E. Highway 90, Sierra Vista. Sponsored by the Friends of the San Pedro River. Suitable footwear. 9-11 a.m. Dec. 6. Donations accepted. 459-2555.

Star Party — Saguaro National Park East. An introduction to astronomy and a look at the desert night sky. Telescopes and binoculars available. Reservations required. 7-9 p.m. Dec. 7. 733-5153.