TY  - RPRT
TI  - Should we terminate an 'artificial,' tree-nesting raptor population in Arizona?
AU  - D. H. Ellis
AU  - D.G. Smith
AU  - F.B.P. Trahan
PY  - 1994
UR  - https://pubs.usgs.gov/publication/5222621
ID  - 5222621
ER  -