Distribution and abundance of least Bell's vireos (Vireo bellii pusillus) and southwestern willow flycatchers (Empidonax traillii extimus) on the middle San Luis Rey River, San Diego County, southern California : 2020 data summary /

Bibliographic Details
Main Authors:	Allen, Lisa D. (Author), Kus, Barbara E. (Author)
Corporate Author:	United States. National Park Service
Format:	Government Document eBook
Language:	English
Published:	Reston, Virginia : U.S. Depart of the Interior, U.S. Geological Survey, 2021.
Series:	Data series (Geological Survey (U.S.)) ; 1134.
Subjects:	Flycatchers > California > San Luis Rey River. Bell vireo > California > San Luis Rey River. Endangered species > California > San Luis Rey River. Wildlife conservation > California > San Luis Rey River.
Online Access:	https://purl.fdlp.gov/GPO/gpo158968

Description
Physical Description:	1 online resource (iv, 11 pages) : color maps.
Bibliography:	Includes bibliographical references (pages 10-11).