Distribution and abundance of southwestern willow flycatchers (Empidonax traillii extimus) on the upper San Luis Rey River, San Diego County--2020 data summary /

Bibliographic Details
Main Authors:	Howell, Scarlett L. (Author), Kus, Barbara Elaine (Author)
Format:	Government Document eBook
Language:	English
Published:	Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2021.
Series:	Data series (Geological Survey (U.S.)) ; 1140.
Subjects:	Southwestern willow flycatcher > California > San Luis Rey River. Flycatchers > California > San Luis Rey River. Birds > Conservation > California > San Luis Rey River.
Online Access:	https://purl.fdlp.gov/GPO/gpo171749

Description
Item Description:	"2021"--Page ii. GPO Cataloging Record Distribution Program (CRDP).
Physical Description:	1 online resource (vi, 11 pages) : color maps.
Bibliography:	Includes bibliographical references (page 11).
ISSN:	2327-638X ;