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Southwestern Willow Flycatcher (Empidonax traillii extimus) surveys and nest monitoring in San Diego County, California, 2015-2016

Metadata Updated: July 6, 2024

Data presented are results of surveys (2015 and 2016) and monitoring (2016) for Southwestern Willow Flycatcher (Empidonax traillii extimus) in San Diego County, California. In 2015, surveys were conducted at select locations along the San Luis Rey River between College Boulevard and Lake Henshaw. In 2016, surveys were conducted at select locations along Agua Hedionda Creek, San Dieguito River, San Luis Rey River, Santa Ysabel Creek, and San Diego River, and nest monitoring was performed at three locations along the San Luis Rey River downstream of Lake Henshaw (Cleveland National Forest, Rey River Ranch, Vista Irrigation District). Surveys were conducted along multiple sections of the river where permission to access properties could be obtained. Locations were surveyed using a standardized protocol three to four times between 15 May and 31 July. The number, age (adult or juvenile), sex, banding status (color banded or not, and if so, color combination), and breeding status (paired, undetermined, or transient) of all willow flycatchers was recorded. In 2015, as preparation for nest monitoring in 2016, adult flycatchers (when possible) were captured in mist nets, using song playbacks to attract birds to nets, and color banded with individually unique color combinations to provide data on survival within and between years. Nestlings in nests found opportunistically during surveys were banded at 6-8 days of age. During banding, data were collected on age, sex, weight, and reproductive status. The goal of nest monitoring was to collect data on annual productivity. Monitored territories were visited 1-2 times weekly to determine nest success and band the nestlings at 6-8 days of age. Adults were also color banded as described above to examine survivorship and dispersal patterns.

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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Dates

Metadata Created Date June 1, 2023
Metadata Updated Date July 6, 2024

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date June 1, 2023
Metadata Updated Date July 6, 2024
Publisher U.S. Geological Survey
Maintainer
@Id http://datainventory.doi.gov/id/dataset/859b7c1185a61ee71f6a30c3d8a1eaf6
Identifier USGS:631ae92ad34e71c6d679c885
Data Last Modified 20230127
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://datainventory.doi.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 69f70f50-a551-419a-bd2e-9207f3d44d71
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -117.30974,32.76731,-116.72772,33.80586
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash 1db579fb7a3064501a1c59f6a2d2e4b3a379c0ccc5164df78f61b0138c80cd47
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -117.30974, 32.76731, -117.30974, 33.80586, -116.72772, 33.80586, -116.72772, 32.76731, -117.30974, 32.76731}

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