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Montana Field Guide

Montana Field Guides

Mourning Warbler - Geothlypis philadelphia

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
The Mourning Warbler breeds from southeast Yukon and northeast British Columbia across to Newfoundland and down into the northern tier of states from Minnesota to Maine. The species winters from Nicaragua into Colombia, Venezuela, and Ecuador. The Mourning Warbler is a rare migrant through Montana with fewer than seven observations reported in a typical year (Pitocchelli 2019,, MTNHP 2019).

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
Montana Range Range Descriptions


Western Hemisphere Range


Observations in Montana Natural Heritage Program Database
Number of Observations: 123

(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)

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Citation for data on this website:
Mourning Warbler — Geothlypis philadelphia.  Montana Field Guide.  .  Retrieved on , from