A white egret stands in shallow water near trees.

El Rio Preserve

Arizona · Southwest

Habitat
DesertChaparral
Best Seasons
Difficulty

Moderate

Best Months

October-May

Entrance Fee

Free

Hours

Open daily, sunrise to sunset

About This Location

El Rio Preserve is a productive birding destination in Arizona, with 267 species recorded on eBird. This desert and chaparral habitat attracts Cinnamon Teal, Northern Shoveler, and Gadwall among many others. The unique desert and riparian habitats support specialty species alongside wintering and migrating birds.

Location

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Notable Species

Live Bird Data

Powered by eBird / Cornell Lab of Ornithology

Notable Sightings

Rare or unusual species spotted nearby in the last 14 days

Rufous Hummingbird

Selasphorus rufus

7/21/2026Sweetwater Wetlands1 observed

Western Warbling Vireo

Vireo swainsoni

7/21/2026Oro Valley Yard (private, not exact location)1 observed

Western Flycatcher

Empidonax difficilis

7/20/2026Placita De Suerte area1 observed

Double-crested Cormorant

Nannopterum auritum

7/20/2026Arthur Pack Regional Park1 observed

Least Bittern

Botaurus exilis

7/19/2026Sweetwater Wetlands1 observed

Anna's x Costa's Hummingbird (hybrid)

Calypte anna x costae

7/18/2026Michael Sadat's Yard1 observed

Northern Cardinal

Cardinalis cardinalis

7/18/2026Sweetwater Wetlands1 observed

Black Vulture

Coragyps atratus

7/17/2026El Rio Preserve1 observed

Common Ground Dove

Columbina passerina

7/17/2026Arthur Pack Regional Park1 observed

American Wigeon

Mareca americana

7/17/2026Reid Park1 observed

Summer Tanager

Piranga rubra

7/17/2026San Miguel (Restricted Access)1 observed

Chipping Sparrow

Spizella passerina

7/17/2026Danny Lopez Park (formerly Columbus Park)1 observed

Recent Observations

Species reported at this location in the last 14 days

Mallard

217/21/2026

White-winged Dove

37/21/2026

Mourning Dove

37/21/2026

American Coot

57/21/2026

Killdeer

17/21/2026

Neotropic Cormorant

27/21/2026

Green Heron

17/21/2026

Great Blue Heron

47/21/2026

Cooper's Hawk

27/21/2026

Black Phoebe

37/21/2026

Brown-crested Flycatcher

27/21/2026

Verdin

17/21/2026

House Sparrow

27/21/2026

House Finch

37/21/2026

Song Sparrow

17/21/2026

Abert's Towhee

27/21/2026

Red-winged Blackbird

37/21/2026

Brown-headed Cowbird

17/21/2026

Great-tailed Grackle

57/21/2026

Common Yellowthroat

17/21/2026

Birding Tips

  1. 1

    Start birding at dawn when desert birds are most active before the heat.

  2. 2

    Check around water sources, which concentrate desert species.

  3. 3

    Carry extra water and sun protection; mornings are the prime birding window.

  4. 4

    Check eBird hotspot data before visiting to see recent sightings and what species are being reported.

  5. 5

    Bring quality optics — a good pair of binoculars (8x42 or 10x42) makes all the difference in species identification.

Frequently Asked Questions

When is the best time to visit El Rio Preserve for birding?
The best months to visit El Rio Preserve for birding are October-May. The best seasons are Fall and Winter and Spring.
What birds can I see at El Rio Preserve?
Notable species at El Rio Preserve include Cinnamon Teal, Northern Shoveler, Gadwall, American Wigeon, Green-winged Teal, Gambel's Quail, Mourning Dove, Costa's Hummingbird, Verdin, House Finch, Lesser Goldfinch, Blue-winged Teal. The area supports desert, chaparral habitats.
How difficult is birding at El Rio Preserve?
Birding at El Rio Preserve is rated as Moderate. Some trails may require moderate fitness and basic hiking ability.
Is there an entrance fee at El Rio Preserve?
There is no entrance fee at El Rio Preserve. Hours: Open daily, sunrise to sunset.
What amenities are available at El Rio Preserve?
El Rio Preserve offers the following amenities: Parking, Restrooms, Trails, Visitor Center.