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Montana Animal Field Guide

Montana Field Guides

Red-breasted Merganser - Mergus serrator

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Global Rank: G5
State Rank: SNA

Agency Status
USFWS: none
USFS: none
BLM: none
CFWCS Tier: 3
PIF: none





 

General Description
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Diagnostic Characteristics
See Kaufman (1990) for information on identification.

General Distribution
Montana Range



Western Hemisphere Range

 


Summary of Observations Submitted for Montana
Number of Observations: 203

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

Recency

Breeding
(direct evidence "B")


Breeding
(indirect evidence "b")


No evidence of Breeding
(transient "t")


Overwintering
(regular observations "W")


Overwintering
(at least one obs. "w")



 

(Records associated with a range of dates are excluded from time charts)



Migration
In the Bozeman area migration occurs from April to May 10 and from October 25 to November 25, with peaks occuring on April 15 and November 8. Montana migration peaks the last week of April and late October. Destinations are unknown.

Habitat
During migration in the Bozeman area, large concentrations are on the large lakes, but they do occur on ponds and rivers (Skaar 1969).

Additional Sources of Information Related to "Birds"
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Citation for data on this website:
Red-breasted Merganser — Mergus serrator.  Montana Field Guide.  Retrieved on February 9, 2010, from http://FieldGuide.mt.gov/detail_ABNJB21020.aspx
 
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