Tres Rios is a constructed wetland complex that recycles and recharges treated water that is discharged from the region’s largest wastewater treatment plant. There is a series of ponds which attract numerous wintering waterbirds and riparian obiligates, including ducks, geese, herons, egrets, ibises, and blackbirds that stay for the winter. There are often raptors such as Prairie or Peregrine Falcons as well as Ospreys. In addition, sightings of mammals such as bobcats and coyotes are not uncommon . Be prepared to walk as far as five miles.

Leader: Mark W. Larson

Who: Open only Maricopa Audubon Society members. You may join MAS any time before the trip here.  

Where: 91st Avenue and the Salt River

Why: To enjoy birding in a highly productive wetland while safely following CDC and state coronavirus guidelines.

How: Registration is required. Limit: five plus the leader. To register, email: larrylangstaff1@gmail.com. 

Please include your phone number in case the field trip needs to be cancelled  or for any post-trip messages such as contact tracing.

Parking: Spaces are extremely limited, and a free City of Phoenix Water Services Department parking permit is required. Carpooling, unless with members of the same household, is discouraged.

On the day of the field trip participants must:

a)       show up on time 

b)       sign the liability waiver

c)       provide a current email address

d)       carpool only with members of your own household

e)       wear your mask

f)        stay 6 feet from others when possible

Bring your binoculars, a field guide, hat, water, snacks, and personal hand sanitizer.