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DWH NRDA Secretive Marsh Bird Callback Survey

Metadata Updated: October 13, 2022

To quantify the abundance and density of secretive marsh birds, field teams conducted survey routes from late March to late July 2010 in Louisiana, Alabama, Mississippi, and Florida. The data were collected by MJ Conroy Wildlife Biometrics (Athens, Georgia) personnel contracted by U.S. Fish and Wildlife Service (USFWS) occasionally accompanied by a BP/CardnoENTRIX observer contracted by the Responsible Party. Field teams conducted surveys in three marsh habitat types, saline Juncus marsh, saline Spartina marsh, and brackish Phragmites marsh. A survey route is a permanent grouping of approximately eight stations at least 500 meters apart that are surveyed during the same morning or evening survey window. At each station, for all target species (clapper rails and seaside sparrows, among others), observers recorded all birds seen or heard in a passive five-minute observation period. Following the passive observation period, observers broadcast callbacks and recorded all birds seen or heard during a respective response period. Observers also recorded the distance and direction of each detected bird relative to the station marker, birds detected between stations, and noted birds detected at a previous point. Data were documented on two data forms, the “National Marsh Bird Monitoring Program Survey” datasheet (herein referred to as “NMBMP form”) and the “Secretive Marsh Bird NRDA Surveys” datasheet (herein referred to as “NRDA form”). Field personnel recorded data on the NMBMP forms, and occasionally later transcribed data onto the NRDA forms. Note that the available datasheet type varies by route (i.e., a route might have data recorded on NMBMP, NRDA, or both forms). As part of the verification and validation process, the DOI Data Verification/Validation Contractor consolidated these data into one comprehensive dataset, Secretive Marsh Bird Callback Survey dataset. Additional details on the methodologies are available in the Standardized North American Marsh Bird Monitoring Protocols Wildlife Research Report #2009-02 and additional details on the surveys, data, and results are provided in the End of Study Report (Data analysis regarding oil spill effects on secretive marsh birds (pre-oiling), Final Report, October 4, 2013 by MJ Conroy Wildlife Biometrics)

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date October 13, 2022
Metadata Updated Date October 13, 2022

Metadata Source

Harvested from DOI DCAT-US harvest source

Additional Metadata

Resource Type Dataset
Metadata Created Date October 13, 2022
Metadata Updated Date October 13, 2022
Publisher Fish and Wildlife Service
Unique Identifier Unknown
Identifier FWS_ServCat_103219
Data First Published 2010-07-15
Data Last Modified 2010-07-15
Category Generic Dataset
Public Access Level public
Bureau Code 010:18
Metadata Context
Schema Version
Catalog Describedby
Data Quality True
Harvest Object Id c95e93b3-b772-4212-9057-eb2421603016
Harvest Source Id bee011ae-6f4a-4b9b-bef9-6c8b6453c562
Harvest Source Title DOI DCAT-US harvest source
Homepage URL
Program Code 010:094, 010:028
Related Documents
Source Datajson Identifier True
Source Hash 159808ed541e4aa6be23552adc9ac26a738a24e8
Source Schema Version 1.1
Temporal 2010-03-23/2010-07-15

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