Distribution and abundance of Least Bell's Vireo (Vireo bellii pusillus) and Southwestern Willow Flycatcher (Empidonax traillii extimus) on the Middle San Luis Rey River, San Diego County, Southern California--2018 data summary /

Bibliographic Details
Main Authors:	Allen, Lisa D. (Author), Kus, Barbara Elaine (Author)
Format:	Government Document eBook
Language:	English
Published:	Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2019.
Series:	Data series (Geological Survey (U.S.)) ; 1109.
Subjects:	Bell vireo > California > San Diego County > Geographical distribution. Southwestern willow flycatcher > California > San Diego County > Geographical distribution.
Online Access:	https://purl.fdlp.gov/GPO/gpo157099

Description
Physical Description:	1 online resource (iv, 10 pages) : color maps.
Bibliography:	Includes bibliographical references (pages 10-12).