Optimizing the duration of point counts for monitoring trends in bird populations
By: Jared Verner.
Contributors: Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.)
Series: Research note PSW -- 395.
Publisher: U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station
Published: 1988
Place of publication: Berkeley, Calif
Language: eng
Subjects: Bird populations -- Measurement.
Notes: Caption title.

"February 1988."

Shipping list no.: 92-0397-M.

Includes bibliographical references.