TY  - RPRT
TI  - Population size and trends for nesting ospreys in northwestern Mexico: Region-wide surveys, 1977, 1992/1993 and 2006
AU  - Charles J. Henny
AU  - Daniel W. Anderson
AU  - Aradit Castellanos Vera
AU  - Jean-Luc E. Carton
PY  - 2007
DO  - 10.3133/ofr20071298
UR  - https://pubs.usgs.gov/publication/ofr20071298
ID  - ofr20071298
ER  -