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"Marshbird" Species Conservation Status Assessment

Main Waterbird Species Conservation Status Assessment page for an overview of approach.

Species Profiles

These are working documents to provide the justification for assigned factor scores. Species profiles are organized by taxonomic family, then alphabetical order. All are in PDF Format.


Arctic Loon
Common Loon
Pacific Loon
Red-throated Loon
Yellow-billed Loon


Horned Grebe
Least Grebe
Pied-billed Grebe
Red-necked Grebe








Sandhill Crane
Whooping Crane


American Bittern
Least Bittern
Pinnated Bittern


American Coot
Black Rail
Buff-banded Rail
Caribbean Coot
Clapper Rail
Colombian Crake
Common Moorhen
Gray-breasted Crake
Gray-necked Wood-Rail
Guam Rail
Hawaiian Coot
King Rail
Paint-billed Crake
Purple Gallinule
Purple Swamphen
Ruddy Crake
Rufous-necked Wood-Rail
Spotless Crake
Spotted Rail
Uniform Crake
Virginia Rail
White-throated Crake
Yellow Rail
Yellow-breasted Crake
Zapata Rail


2002: The North American Waterbird Conservation Plan, Version 1 is published. Expert assessment of the conservation status of colonial and semi-colonial breeding waterbirds is presented but assessment of solitary-nesting waterbirds (nicknamed "marshbirds") is deferred.
January 2005: The Waterbird Conservation Council charges its Technical Services committee to complete the status assessment of marshbirds by January 2006.
July 2005: Solicitation to participate in marshbird status assessment process sent to compiled list of species experts and waterbirds network.
August 2005: First drafts of species profiles sent to selected species experts for review.
September 2005: Profiles edited based on comments, workshop arrangements finalized.
October 2005: Species profiles and summary tables circulated for broad review, and workshop held October 15 to calibrate and perform a second round of review.
November/December 2005: Comments on workshop output solicited until November 15 and incorporated into profiles and summary tables, finalizing assessment in most cases.
February 2006: Additional round of review for select species due to new information from Canadian partners.
March 2006: Finalization of marshbird status assessment.

Comments and Edits Log

Full Worksheet for Marshbird Status Assessment shows interim results and documents revisions. (Excel Spreadsheet)

The List of Participants at the October 2005 Workshop includes contact information and interests for those who attended the calibration exercise. (Excel spreadsheet)

The following files track the comments received on species profiles and on the status assessment process, as well as the resulting edits:

Comments on Species Information, August 2005 - February 2006 PDF format
Comments on Assessment Process and Protocol, August 2005 - February 2006 PDF format

Last Updated on November 30, 2007. Please forward any comments/suggestions to Jennifer Wheeler.

U. S. Fish and Wildlife Service (USFWS) is supporting the Waterbird Conservation for the Americas Home Page as part of its contribution to North American Waterbird Conservation Plan (NAWCP). It is being served by the USFWS Division of Migratory Birds. Information provided in this site does not necessarily have the endorsement of the USFWS.