Documentation of Trumpeter Swan

Observer Information

Reporter:  Todd Deininger   
Other Observers:  Joey Kellner, Tim Smart, Nick Moore; Tim Kalbach

Species, Date, Time and Location Information

Species:  Trumpeter Swan
First Date/Time:  11/21/2010
Last Date/Time: 
Duration (total time in view):  20 minutes
County:  Lake
Specific Location:  Twin Lakes
Number:  3
Age:  Unknown
Sex:  Unknown
Plumage:  Other/Unknown



Viewing Conditions

Optics:  Binoculars and spotting scope
Distance:  500 - 1000 feet
Light:  Light did not impact observation.

Description of the Bird

Four swans were observed, all in adult plumage. Three of the four were larger. All three had the V-forehead, sloping forehead. A very light rusty color on the neck. Their neck appeared to thicken as it reached the body.
Behaviors: Birds were swimming in open water.
Call: none
Plumage: Adult

Similar Species Discussion

Ruled out Mute and Whooper Swan due to bill color and Tundra Swan because a Tundra swan was observed at the same time.

Resources Used


Previous Experience

I have observed Trumpeter Swan in WY and both species in CO during the winter.



Additional Information

Comments: Tundra and Trumpeter Swans were observed side by side.
Time: 11:30 am
Other Dates:
Nearest Town: Twin Lakes
Independent Observers: Tim Kalbach

Materials Available

No files uploaded.

Date Documentation Submitted

11/22/2010 9:24:00 PM

Location Map

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