TY  - RPRT
TI  - Sample size and allocation of effort in point count sampling of birds in bottomland hardwood forests
AU  - W.P. Smith
AU  - D.J. Twedt
AU  - R.J. Cooper
AU  - D.A. Wiedenfeld
AU  - P.B. Hamel
AU  - R.P. Ford
PY  - 1995
UR  - https://pubs.usgs.gov/publication/5210893
ID  - 5210893
ER  -