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Montana Field Guide

Montana Field Guides

Mute Swan - Cygnus olor

Non-native Species

Global Rank: G5
State Rank: SNA

Agency Status


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Copyright by: The Macaulay Library at the Cornell Lab of Ornithology, Ithaca, NY, all rights reserved.
General Description
We do not yet have descriptive information on this species. Please try the buttons above to search for information from other sources.

For a comprehensive review of the conservation status, habitat use, and ecology of this and other Montana bird species, please see Marks et al. 2016, Birds of Montana.

Species Range
Introduced Not Established

Western Hemisphere Range


Range Comments
The Montana population stemed from an introduced population in latilong 39. Distribution was centered around L39, south of Livingston. Nesting information and dates are not available. The population was eliminated by agency personel due to problems caused to native swans (hybidization, competition, etc.). As of April 1993 only 1 bird was still alive (Tom Lemke, personal communication).

Observations in Montana Natural Heritage Program Database
Number of Observations: 38

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density


SUMMER (Feb 16 - Dec 14)
Direct Evidence of Breeding

Indirect Evidence of Breeding

No Evidence of Breeding

WINTER (Dec 15 - Feb 15)
Regularly Observed

Not Regularly Observed


(Observations spanning multiple months or years are excluded from time charts)

No migration occurs.

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Citation for data on this website:
Mute Swan — Cygnus olor.  Montana Field Guide.  .  Retrieved on , from