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
    Prewitt and Jackson Reservoirs
    Sun, Aug 31
    5:00 AM - 6:30 PM
    Joey Kellner
    Strenuous19
    Common Poorwill Evening
    Mon, Sep 1
    6:45 PM - 9:15 PM
    David Suddjian
    Easy83
    Denver Audubon Co-sponsored Developing Birder Rocky Flats National Wildlife Refuge (Developing Birder Trip)
    Denver Audubon Co-sponsored

    Tue, Sep 2
    6:30 AM - 8:30 AM
    Matthew Hazelgren & Carly Crow
    Moderate87
    Confluence Open Space (Aurora)
    Fri, Sep 5
    7:30 AM - 10:00 AM
    Cynthia Cestkowski
    Moderate87
    Colorado Birding Challenge: Crowley County
    Sat, Sep 6
    4:15 AM - 6:00 PM
    Chris Gilbert
    Strenuous64
    Colorado Birding Challenge: Douglas County
    Sat, Sep 6
    6:00 AM - 12:00 PM
    Susan Blansett
    Moderate83
    Colorado Birding Challenge: Arapahoe County
    Sat, Sep 6
    6:15 AM - 3:00 PM
    Ryan Corda
    Moderate43
    Colorado Birding Challenge: Gilpin County
    Sat, Sep 6
    6:30 AM - 1:30 PM
    Donna Stumpp & Gary Witt
    Moderate64
    Developing Birder Denver City Park (Denver County) (Developing Birder Trip)
    Sun, Sep 7
    7:00 AM - 11:00 AM
    Jason Bidgood & Patrick O'Driscoll
    Moderate1011
    Denver Botanic Gardens at Chatfield
    Mon, Sep 8
    9:00 AM - 12:00 PM
    Judy McKeon & David Suddjian
    Easy1217
    Chico Basin Ranch
    Tue, Sep 9
    5:30 AM - 2:00 PM
    KIP MILLER
    Moderate124
    Denver Audubon Co-sponsored Plaster Reservoir in Broomfield
    Denver Audubon Co-sponsored

    Wed, Sep 10
    6:30 AM - 8:00 AM
    Brian Genge
    Easy82
    Patch Birding Cherry Creek State Park (Patch Birding Trip)
    Wed, Sep 10
    7:00 AM - 9:00 AM
    Ethan Cleveland
    Easy1011
    Developing Birder Tucker Gulch (Developing Birder Trip)
    Thu, Sep 11
    5:00 PM - 8:00 PM
    Ryan Corda
    Easy87
    Denver Audubon Co-sponsored Developing Birder Cherry Creek State Park (Developing Birder Trip)
    Denver Audubon Co-sponsored

    Fri, Sep 12
    8:00 AM - 11:00 AM
    Ryan Dibala
    Moderate87
    Denver Audubon Co-sponsored Birds Plus+ Dinosaur Ridge (Birds Plus+ Trip)
    Denver Audubon Co-sponsored

    Sat, Sep 13
    7:00 AM - 12:00 PM
    Ajit Antony & Liza Antony
    Moderate1212
    Pella Crossing Open Space (Boulder County)
    Sat, Sep 13
    7:30 AM - 10:30 AM
    Chuck Hundertmark
    Easy83
    Barr Lake State Park Bird Banding Station
    Sun, Sep 14
    7:30 AM - 10:30 AM
    Charles Chase
    Easy159
    Developing Birder Belmar Historic Park (Developing Birder Trip)
    Sun, Sep 14
    7:30 AM - 10:30 AM
    Shay Lyons
    Easy812
    Aiken Audubon Co-sponsored Summer Hummers Chico Basin Ranch (Summer Hummers Trip)
    Aiken Audubon Co-sponsored

    Mon, Sep 15
    5:30 AM - 3:30 PM
    Jessica Miller
    Moderate1215
    Denver Audubon Co-sponsored Developing Birder First Creek at Green Valley Ranch (Developing Birder Trip)
    Denver Audubon Co-sponsored

    Tue, Sep 16
    6:45 AM - 8:45 AM
    Carly Crow
    Easy87
    Denver Audubon Co-sponsored Audubon Kingery Nature Center and Trails
    Denver Audubon Co-sponsored

    Thu, Sep 18
    7:00 AM - 10:30 AM
    Charles Chase
    Easy154
    Developing Birder Tucker Gulch (Developing Birder Trip)
    Thu, Sep 18
    5:00 PM - 8:00 PM
    Ryan Corda
    Easy81
    Denver Audubon Co-sponsored South Platte Park--South End
    Denver Audubon Co-sponsored

    Fri, Sep 19
    7:30 AM - 10:30 AM
    Cynthia Breidenbach
    Easy83
    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
    Denver Audubon Co-sponsored Birds Plus+ Castlewood Canyon State Park (Douglas County) (Birds Plus+ Trip)
    Denver Audubon Co-sponsored

    Reg. opens 9/5/2025 at 12 pm
    Fri, Sep 26
    8:30 AM - 11:30 AM
    Robert Sanchez & Heather Sanchez
    Moderate102
    Denver Audubon Co-sponsored Deer Creek White-throated Swift watch
    Denver Audubon Co-sponsored

    Reg. opens 9/11/2025 at 12 pm
    Thu, Oct 2
    5:30 PM - 7:00 PM
    David Suddjian
    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
    Denver Audubon Co-sponsored Deer Creek White-throated Swift watch
    Denver Audubon Co-sponsored

    Reg. opens 9/12/2025 at 12 pm
    Fri, Oct 3
    5:30 PM - 7:00 PM
    David Suddjian
    Easy81
    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
    Denver Audubon Co-sponsored Deer Creek White-throated Swift watch
    Denver Audubon Co-sponsored

    Reg. opens 9/14/2025 at 12 pm
    Sun, Oct 5
    5:30 PM - 7:00 PM
    David Suddjian
    Easy81
    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
    Denver Audubon Co-sponsored Aurora Reservoir
    Denver Audubon Co-sponsored

    Reg. opens 10/25/2025 at 12 pm
    Sat, Nov 15
    6:20 AM - 9:30 AM
    Carly Crow
    Moderate81

    Click on an icon for some basic trip details

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