TY  - RPRT
TI  - Sensitive resettable odometer aids roadside census of red-winged blackbirds
AU  - D.T. Harke
AU  - A.R. Stickley
PY  - 1968
DO  - 10.2307/3798950
UR  - https://pubs.usgs.gov/publication/5220630
ID  - 5220630
ER  -