Upcoming Field Trips

 

Click the Details button to view complete trip information and register for a trip. Trips highlighted in green are filled, but register to be added to the waiting list. Often, some original registrants drop out, opening spots to those on the waiting list. If you have symptoms of illness please be courteous of the welfare of other participants by canceling your registration for the trip.

Some field trips require carpooling with volunteer drivers so that we may lessen our impact on the environment, provide for logistical needs of having fewer vehicles, and improve the quality of the field trip experience. DFO recommends mileage reimbursement to volunteer carpool drivers of $0.50/mile divided by the number of persons in the car. This amount may be optionally reduced at the discretion of a driver. Riders should please come prepared to reimburse the driver at the conclusion of the field trip. 

Please note:

  • You must register as an individual (separate login) so that the liability waiver on file is attached to your registration.
    • If you are having trouble registering multiple individuals in the same family membership, please contact the Field Trip Chair (see "Leadership" list in the "About DFO" section of the website).

    Please help us make DFO field trips better. Read our condensed guidelines or even better, check out the full document BETTER BIRDING WITH DFO: How to Get the Most Out of Your Denver Field Ornithologists Field Trip.

    • eBird HotspotseBird Hotspot - site descriptions and photos (submit your additions)
    Key to Special Focus Trips
    Birds Plus+
    Birds Plus+
    Developing Birder
    Developing Birder
    Patch Birding
    Patch Birding
    Bird Song Focus
    Bird Song Focus
    Birding By Bike
    Birding By Bike
    Summer Hummers
    Summer Hummers
    Aiken Audubon Co-sponsored
    Aiken Audubon Co-sponsored
    Denver Audubon Co-sponsored
    Denver Audubon Co-sponsored
     WhereDateLeader(s)DifficultyMaximumRegistered
    Louviers (town) and DuPont Open Space (Douglas County)
    Sun, Aug 10
    7:00 AM - 11:00 AM
    David Suddjian
    Moderate88
    Waneka Lake Park & Greenlee Preserve
    Mon, Aug 11
    6:00 PM - 8:00 PM
    Benjamin Jacques
    Easy1010
    Summer Hummers Boulder Community Garden (Summer Hummers Trip)
    Tue, Aug 12
    6:00 PM - 8:00 PM
    Laura Steadman
    Easy85
    Chatfield State Park
    Wed, Aug 13
    7:00 AM - 11:00 AM
    Dale Pate
    Moderate88
    Developing Birder Bear Creek Greenbelt (Developing Birder Trip)
    Thu, Aug 14
    5:00 PM - 8:00 PM
    Ryan Corda
    Easy88
    Denver Audubon Co-sponsored Birds Plus+ Park County Explorations (Birds Plus+ Trip)
    Denver Audubon Co-sponsored

    Fri, Aug 15
    5:30 AM - 4:00 PM
    David Suddjian
    Strenuous86
    Cherry Creek State Park
    Sat, Aug 16
    7:30 AM - 11:00 AM
    Gary Witt
    Moderate1414
    Denver Audubon Co-sponsored South Platte Park--South End
    Denver Audubon Co-sponsored

    Fri, Aug 22
    7:30 AM - 10:30 AM
    Cynthia Breidenbach & Julia Gwinn
    Easy109
    Developing Birder Tucker Gulch (Developing Birder Trip)
    Fri, Aug 22
    5:00 PM - 8:00 PM
    Ryan Corda
    Easy86
    Barr Lake State Park
    Sat, Aug 23
    7:00 AM - 11:00 AM
    Timothy Condon
    Moderate1216
    Denver Audubon Co-sponsored Patch Birding Bear Creek Greenbelt (Patch Birding Trip)
    Denver Audubon Co-sponsored

    Sun, Aug 24
    7:00 AM - 11:00 AM
    Jordan Gerue
    Easy1010
    Rocky Mountain Arsenal NWR
    Sun, Aug 24
    7:00 AM - 11:00 AM
    Jason Bidgood
    Moderate1011
    Aiken Audubon Co-sponsored Park County Reservoirs
    Aiken Audubon Co-sponsored

    Mon, Aug 25
    6:30 AM - 3:30 PM
    Joseph Tuttle & David Suddjian
    Moderate1212
    Developing Birder Bear Creek Greenbelt (Developing Birder Trip)
    Thu, Aug 28
    5:00 PM - 8:00 PM
    Ryan Corda
    Easy81
    Barr Lake State Park Bird Banding Station
    Fri, Aug 29
    7:00 AM - 10:30 AM
    Charles Chase
    Easy156
    Jewell Wetlands Park (Aurora)
    Fri, Aug 29
    7:30 AM - 9:30 AM
    Cynthia Cestkowski
    Easy81
    Chatfield State Park
    Reg. opens 8/9/2025 at 12 pm
    Sat, Aug 30
    7:00 AM - 10:30 AM
    Angela Grun
    Moderate103
    Denver Audubon Co-sponsored Birds Plus+ Dinosaur Ridge (Birds Plus+ Trip)
    Denver Audubon Co-sponsored

    Reg. opens 8/9/2025 at 12 pm
    Sat, Aug 30
    7:00 AM - 12:00 PM
    Ajit Antony & Liza Antony
    Moderate126
    Prewitt and Jackson Reservoirs
    Reg. opens 8/10/2025 at 12 pm
    Sun, Aug 31
    5:00 AM - 6:30 PM
    Joey Kellner
    Strenuous1
    Confluence Open Space (Aurora)
    Reg. opens 8/15/2025 at 12 pm
    Fri, Sep 5
    7:30 AM - 10:00 AM
    Cynthia Cestkowski
    Moderate81
    Colorado Birding Challenge: Crowley County
    Reg. opens 8/16/2025 at 12 pm
    Sat, Sep 6
    4:15 AM - 6:00 PM
    Chris Gilbert
    Strenuous61
    Colorado Birding Challenge: Douglas County
    Reg. opens 8/16/2025 at 12 pm
    Sat, Sep 6
    6:00 AM - 12:00 PM
    Susan Blansett
    Moderate81
    Colorado Birding Challenge: Arapahoe County
    Reg. opens 8/16/2025 at 12 pm
    Sat, Sep 6
    6:15 AM - 3:00 PM
    Ryan Corda
    Moderate41
    Colorado Birding Challenge: Gilpin County
    Reg. opens 8/16/2025 at 12 pm
    Sat, Sep 6
    6:30 AM - 1:30 PM
    Donna Stumpp & Gary Witt
    Moderate62
    Developing Birder Denver City Park (Denver County) (Developing Birder Trip)
    Reg. opens 8/17/2025 at 12 pm
    Sun, Sep 7
    7:00 AM - 11:00 AM
    Jason Bidgood & Patrick O'Driscoll
    Moderate102
    Denver Botanic Gardens at Chatfield
    Reg. opens 8/18/2025 at 12 pm
    Mon, Sep 8
    9:00 AM - 12:00 PM
    Judy McKeon & David Suddjian
    Easy82
    Patch Birding Cherry Creek State Park (Patch Birding Trip)
    Reg. opens 8/20/2025 at 12 pm
    Wed, Sep 10
    7:00 AM - 9:00 AM
    Ethan Cleveland
    Easy81
    Developing Birder Tucker Gulch (Developing Birder Trip)
    Reg. opens 8/21/2025 at 12 pm
    Thu, Sep 11
    5:00 PM - 8:00 PM
    Ryan Corda
    Easy81
    Barr Lake State Park Bird Banding Station
    Reg. opens 8/24/2025 at 12 pm
    Sun, Sep 14
    7:30 AM - 10:30 AM
    Charles Chase
    Easy151
    Developing Birder Belmar Historic Park (Developing Birder Trip)
    Reg. opens 8/24/2025 at 12 pm
    Sun, Sep 14
    7:30 AM - 10:30 AM
    Shay Lyons
    Easy81
    Aiken Audubon Co-sponsored Summer Hummers Chico Basin Ranch (Summer Hummers Trip)
    Aiken Audubon Co-sponsored

    Reg. opens 8/25/2025 at 12 pm
    Mon, Sep 15
    5:30 AM - 3:30 PM
    Jessica Miller
    Moderate121
    Denver Audubon Co-sponsored Developing Birder First Creek at Green Valley Ranch (Developing Birder Trip)
    Denver Audubon Co-sponsored

    Reg. opens 8/26/2025 at 12 pm
    Tue, Sep 16
    6:45 AM - 8:45 AM
    Carly Crow
    Easy81
    Denver Audubon Co-sponsored Audubon Kingery Nature Center and Trails
    Denver Audubon Co-sponsored

    Reg. opens 8/28/2025 at 12 pm
    Thu, Sep 18
    7:00 AM - 10:30 AM
    Charles Chase
    Easy151
    Developing Birder Tucker Gulch (Developing Birder Trip)
    Reg. opens 8/28/2025 at 12 pm
    Thu, Sep 18
    5:00 PM - 8:00 PM
    Ryan Corda
    Easy81
    Developing Birder Tucker Gulch (Developing Birder Trip)
    Reg. opens 9/4/2025 at 12 pm
    Thu, Sep 25
    5:00 PM - 8:00 PM
    Ryan Corda
    Easy81
    Barr Lake State Park Bird Banding Station
    Reg. opens 9/12/2025 at 12 pm
    Fri, Oct 3
    7:00 AM - 10:30 AM
    Charles Chase
    Easy151
    Confluence Open Space (Aurora)
    Reg. opens 9/12/2025 at 12 pm
    Fri, Oct 3
    8:00 AM - 10:30 AM
    Cynthia Cestkowski
    Moderate81
    South Republican WMA and Pipit Hill
    Reg. opens 9/13/2025 at 12 pm
    Sat, Oct 4
    6:00 AM - 5:00 PM
    Gary Witt
    Strenuous121
    South Republican WMA and Pipit Hill
    Reg. opens 9/17/2025 at 12 pm
    Wed, Oct 8
    6:00 AM - 5:00 PM
    Gary Witt
    Strenuous121
    Chatfield State Park, The Big Sit
    Reg. opens 9/21/2025 at 12 pm
    Sun, Oct 12
    6:00 AM - 7:00 PM
    Joey Kellner
    Easy1
    Mountain Lakes and Scoter Trip
    Reg. opens 10/11/2025 at 12 pm
    Sat, Nov 1
    5:30 AM - 6:00 PM
    Joey Kellner
    Strenuous121

    Click on an icon for some basic trip details

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