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
    Patch Birding Ken Mitchell Park and Open Space (Patch Birding Trip)
    Tue, May 26
    6:45 AM - 12:05 PM
    Chris Gilbert
    Moderate93
    Aiken Audubon Co-sponsored South Republican SWA
    Seeking Eastern US Bird Species in Colorado

    Aiken Audubon Co-sponsored

    Thu, May 28
    5:30 AM - 4:30 PM
    Gary Witt
    Strenuous127
    Bird Song Focus Deer Creek Canyon Open Space Park (Bird Song Focus Trip)
    A wonderful loop walk in a birdy foothills park!

    Thu, May 28
    6:30 AM - 11:00 AM
    David Suddjian
    Moderate610
    Denver Audubon Co-sponsored Birds Plus+ Audubon Kingery Nature Center and Trails (Birds Plus+ Trip)
    Explore Bird Banding and Ecology of the S. Platte

    Denver Audubon Co-sponsored

    Fri, May 29
    7:00 AM - 10:30 AM
    Charles Chase
    Easy1516
    Ponderosa Preserve (City of Aurora)
    Fri, May 29
    8:30 AM - 11:30 AM
    Cynthia Cestkowski
    Moderate1212
    Chatfield State Park - Marina sandspit
    Sat, May 30
    7:00 AM - 11:00 AM
    Joey Kellner
    Moderate23
    Genesee Park (Denver Mountain Parks)
    Sun, May 31
    6:45 AM - 10:00 AM
    Judy McKeon
    Easy88
    Rocky Flats National Wildlife Refuge
    Thu, Jun 4
    6:30 AM - 8:30 AM
    Matthew Hazelgren
    Easy83
    Denver Audubon Co-sponsored Developing Birder Tucker Gulch (Developing Birder Trip)
    Denver Audubon Co-sponsored

    Thu, Jun 4
    5:00 PM - 8:00 PM
    Ryan Corda
    Easy84
    Denver Audubon Co-sponsored Park Hill Park
    supporting Denver Audubon Bird Project - June 2026

    Denver Audubon Co-sponsored

    Sat, Jun 6
    6:30 AM - 9:30 AM
    Linda Purcell
    Easy72
    Pine Valley Ranch
    Sun, Jun 7
    7:00 AM - 11:30 AM
    Timothy Condon
    Moderate1620
    Aiken Audubon Co-sponsored Birds Plus+ Paint Mines Interpretive Park (Birds Plus+ Trip)
    including Fountain Creek

    Aiken Audubon Co-sponsored

    Mon, Jun 8
    5:00 AM - 2:00 PM
    Linda Purcell & Judy McKeon
    Moderate1014
    White Ranch Park (East) (JeffCo Open Space)
    Tue, Jun 9
    5:30 AM - 10:30 AM
    Susan Blansett
    Moderate99
    Denver Audubon Co-sponsored Tamarack Ranch State Wildlife Área
    Denver Audubon Co-sponsored

    Thu, Jun 11 - Fri, Jun 12
    1:00 PM - 3:00 PM
    Gary Witt
    Strenuous910
    Denver Audubon Co-sponsored Developing Birder Tucker Gulch (Developing Birder Trip)
    Denver Audubon Co-sponsored

    Thu, Jun 11
    5:00 PM - 8:00 PM
    Ryan Corda
    Easy85
    Flying J Ranch (Jefferson County Open Space)
    Flying J Ranch

    Sat, Jun 13
    7:00 AM - 11:30 AM
    Lynn Slaga
    Moderate810
    Developing Birder Sand Creek Regional Greenway - Smith Road Trailhead (Developing Birder Trip)
    Sat, Jun 13
    7:30 AM - 10:30 AM
    Gary Witt & Jill Boice
    Easy154
    Patch Birding University of Colorado - Boulder, South Campus (CU South) (Patch Birding Trip)
    Sun, Jun 14
    7:00 AM - 11:30 AM
    Laura Steadman
    Moderate83
    Bailey Nesting Area, Summit County
    Reg. opens 5/26/2026 at 12 pm
    Tue, Jun 16
    5:30 AM - 5:30 PM
    Paul Slingsby & Chris Blakeslee
    Strenuous122
    Denver Audubon Co-sponsored South Platte Park--South End
    Denver Audubon Co-sponsored

    Reg. opens 5/29/2026 at 12 pm
    Fri, Jun 19
    8:00 AM - 11:00 AM
    Cynthia Breidenbach & Julia Gwinn
    Moderate102
    Denver Audubon Co-sponsored Lair o' the Bear Park (Jefferson County)
    American Dipper Focus

    Denver Audubon Co-sponsored

    Reg. opens 6/6/2026 at 12 pm
    Sat, Jun 27
    7:00 AM - 10:00 AM
    Alison Kondler
    Easy101
    Birds Plus+ Clear Creek from the Foothills to the Mountains (Birds Plus+ Trip)
    Clear Creek Birding Adventure #5!

    Reg. opens 6/9/2026 at 12 pm
    Tue, Jun 30
    5:30 AM - 12:30 PM
    Linda Purcell & David Suddjian
    Moderate82
    Denver Audubon Co-sponsored Birds Plus+ Audubon Kingery Nature Center and Trails (Birds Plus+ Trip)
    Bird and Bat Watching

    Denver Audubon Co-sponsored

    Reg. opens 6/21/2026 at 12 pm
    Sun, Jul 12
    7:00 PM - 9:30 PM
    Alison Kondler
    Easy141
    Denver Audubon Co-sponsored Summer Hummers at Lyons
    Four species of hummers likely!

    Denver Audubon Co-sponsored

    Reg. opens 6/23/2026 at 12 pm
    Tue, Jul 14
    8:00 AM - 10:30 AM
    Mary Geder
    Easy121
    Denver Audubon Co-sponsored Developing Birder Park County Explorations (Developing Birder Trip)
    White-Tailed Ptarmigan & Montane Species Pursuit!

    Denver Audubon Co-sponsored

    Reg. opens 6/27/2026 at 12 pm
    Sat, Jul 18
    5:30 AM - 4:00 PM
    Ryan Corda & David Suddjian
    Strenuous82
    Denver Audubon Co-sponsored Summer Hummers Lyons Area (Boulder and Larimer County) (Summer Hummers Trip)
    Hummingbirds By Sight and Sound

    Denver Audubon Co-sponsored

    Reg. opens 6/27/2026 at 12 pm
    Sat, Jul 18
    7:15 AM - 10:30 AM
    Alison Kondler & Raymond Davis
    Easy132
    Denver Audubon Co-sponsored Summer Hummers Bailey Region (Park and Jefferson Counties) (Summer Hummers Trip)
    Hummingbird study opportunity and more!

    Denver Audubon Co-sponsored

    Reg. opens 6/28/2026 at 12 pm
    Sun, Jul 19
    7:00 AM - 11:30 AM
    David Suddjian
    Easy71
    Denver Audubon Co-sponsored Bailey Region (Park and Jefferson Counties)
    Hummingbird study opportunity and more!

    Denver Audubon Co-sponsored

    Reg. opens 7/1/2026 at 12 pm
    Wed, Jul 22
    7:00 AM - 11:30 AM
    David Suddjian
    Easy71
    Denver Audubon Co-sponsored Summer Hummers Summer Hummers at Lyons (Summer Hummers Trip)
    Four species of hummers likely!

    Denver Audubon Co-sponsored

    Reg. opens 7/4/2026 at 12 pm
    Sat, Jul 25
    8:00 AM - 10:30 AM
    David Suddjian
    Easy121
    Denver Audubon Co-sponsored Summer Hummers Bailey Region (Park and Jefferson Counties) (Summer Hummers Trip)
    Hummingbird study opportunity and more!

    Denver Audubon Co-sponsored

    Reg. opens 7/8/2026 at 12 pm
    Wed, Jul 29
    7:00 AM - 11:30 AM
    David Suddjian
    Easy71
    Denver Audubon Co-sponsored Summer Hummers Summer Hummers at Lyons (Summer Hummers Trip)
    Four species of hummers likely!

    Denver Audubon Co-sponsored

    Reg. opens 7/10/2026 at 12 pm
    Fri, Jul 31
    8:00 AM - 10:30 AM
    David Suddjian
    Easy121

    Click on an icon for some basic trip details

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