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
    Confluence Open Space (Aurora)
    Explore a less birded hotspot

    Wed, Oct 21
    8:00 AM - 10:30 AM
    Cynthia Cestkowski
    Moderate810
    Denver Audubon Co-sponsored Clear Creek Trail
    Birding Discovery #6 270 to the S. Platte

    Denver Audubon Co-sponsored

    Wed, Oct 21
    4:00 PM - 6:30 PM
    Linda Purcell
    Moderate65
    Chatfield State Park
    Drop-in Sunrise Sit at Catfish Flats Picnic Area

    Thu, Oct 22
    6:45 AM - 8:30 AM
    Cynthia Breidenbach & Joey Kellner
    Easy10
    Developing Birder Washington Park (Developing Birder Trip)
    Weekly Duck Round-up!

    Fri, Oct 23
    7:00 AM - 8:00 AM
    Ryan Corda
    Easy85
    Robert A. Easton Regional Park
    Bare Naked Birding!

    Sat, Oct 24
    7:30 AM - 11:00 AM
    David Suddjian
    Easy66
    Patch Birding Denver City Park (Denver County) (Patch Birding Trip)
    Sun, Oct 25
    7:30 AM - 11:00 AM
    Patrick O'Driscoll
    Easy1212
    Heron Pond Natural Area / Heller Open Space (Denver County)
    Work is complete!

    Sun, Oct 25
    7:30 AM - 10:45 AM
    Linda Purcell & David Suddjian
    Easy1016
    Developing Birder Chatfield in the Afternoon (Developing Birder Trip)
    Thu, Oct 29
    3:00 PM - 5:30 PM
    David Suddjian
    Easy1
    Aiken Audubon Co-sponsored Eleven Mile Canyon
    Search for dippers along the South Platte

    Aiken Audubon Co-sponsored

    Fri, Oct 30
    6:00 AM - 4:00 PM
    David Suddjian
    Easy89
    Developing Birder Washington Park (Developing Birder Trip)
    Weekly Duck Round-up!

    Fri, Oct 30
    7:00 AM - 8:00 AM
    Ryan Corda
    Easy82
    Denver Audubon Co-sponsored South Platte Park--South End
    Denver Audubon Co-sponsored

    Fri, Oct 30
    8:00 AM - 11:00 AM
    Cynthia Breidenbach & Julia Gwinn
    Moderate1014
    Developing Birder Prospect Park (Wheat Ridge Greenbelt) (Developing Birder Trip)
    Fri, Oct 30
    3:00 PM - 5:00 PM
    Ryan Corda & Jason Bidgood
    Easy83
    Chatfield State Park - Marina sandspit
    Sat, Oct 31
    8:00 AM - 12:00 PM
    Joey Kellner
    Moderate18
    Lakewood
    Bare Naked Birding!

    Sun, Nov 1
    7:30 AM - 10:30 AM
    David Suddjian
    Easy66
    Developing Birder Washington Park (Developing Birder Trip)
    Weekly Duck Round-up!

    Fri, Nov 6
    6:45 AM - 8:00 AM
    Ryan Corda
    Easy81
    Mountain Lakes and Scoter Trip
    Sat, Nov 7
    5:00 AM - 6:00 PM
    Joey Kellner
    Strenuous1211
    Aiken Audubon Co-sponsored Lake Pueblo State Park
    Aiken Audubon Co-sponsored

    Sat, Nov 7
    6:00 AM - 4:00 PM
    David Suddjian
    Moderate810
    Developing Birder Washington Park (Developing Birder Trip)
    Weekly Duck Round-up!

    Reg. opens 10/23/2026 at 12 pm
    Fri, Nov 13
    6:45 AM - 8:00 AM
    Ryan Corda
    Easy81
    Rocky Mountain Arsenal NWR
    South Side Hotspots

    Reg. opens 10/25/2026 at 12 pm
    Sun, Nov 15
    8:00 AM - 12:00 PM
    Jason Bidgood
    Moderate81
    Developing Birder Washington Park (Developing Birder Trip)
    Weekly Duck Round-up!

    Reg. opens 10/30/2026 at 12 pm
    Fri, Nov 20
    6:45 AM - 8:00 AM
    Ryan Corda
    Easy81
    Denver Audubon Co-sponsored South Platte Park and Carson Nature Center
    Cooley Lake Restricted Access Area

    Denver Audubon Co-sponsored

    Reg. opens 10/30/2026 at 12 pm
    Fri, Nov 20
    9:00 AM - 12:00 PM
    Cynthia Breidenbach & Julia Gwinn
    Moderate152
    Denver Audubon Co-sponsored Developing Birder Prospect Park (Wheat Ridge Greenbelt) (Developing Birder Trip)
    Late fall at a birder's favorite spot!

    Denver Audubon Co-sponsored

    Reg. opens 11/1/2026 at 12 pm
    Sun, Nov 22
    7:30 AM - 10:30 AM
    Shay Lyons
    Easy101
    Denver Audubon Co-sponsored Developing Birder Greenwood Gulch and Marjorie Perry Nature Preserve (Developing Birder Trip)
    Join us for a pre-Thanksgiving birding walk!

    Denver Audubon Co-sponsored

    Reg. opens 11/3/2026 at 12 pm
    Tue, Nov 24
    9:00 AM - 12:00 PM
    Sue Summers & Denise Reznicek
    Moderate122
    Denver Audubon Co-sponsored Wild Turkey Search at South Platte Park
    Thanksgiving Day Wild Turkey Search

    Denver Audubon Co-sponsored

    Reg. opens 11/5/2026 at 12 pm
    Thu, Nov 26
    9:00 AM - 12:00 PM
    Cynthia Breidenbach & Julia Gwinn
    Moderate163
    Aiken Audubon Co-sponsored El Paso County
    Black Friday Birding at El Paso hotspots

    Aiken Audubon Co-sponsored

    Reg. opens 11/6/2026 at 12 pm
    Fri, Nov 27
    6:30 AM - 3:00 PM
    David Suddjian & Jessica Miller
    Moderate122
    Developing Birder Washington Park (Developing Birder Trip)
    Weekly Duck Round-up!

    Reg. opens 11/6/2026 at 12 pm
    Fri, Nov 27
    6:45 AM - 8:00 AM
    Ryan Corda
    Easy81
    Developing Birder Centennial Park and Nearby Hotspots (Developing Birder Trip)
    Studying winter habitat and species!

    Reg. opens 11/6/2026 at 12 pm
    Fri, Nov 27
    9:00 AM - 11:30 AM
    Linda Purcell
    Easy81
    Chatfield State Park - Marina sandspit
    (cancelled)

    Reg. opens 11/7/2026 at 12 pm
    Sat, Nov 28
    8:00 AM - 12:00 PM
    Joey Kellner
    Moderate1
    Denver Audubon Co-sponsored South Platte Park--South End
    Denver Audubon Co-sponsored

    Reg. opens 11/27/2026 at 12 pm
    Fri, Dec 18
    9:00 AM - 12:00 PM
    Cynthia Breidenbach & Julia Gwinn
    Moderate102

    Click on an icon for some basic trip details

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