TY  - RPRT
TI  - Reproductive patterns in captive American kestrels (sparrow hawks)
AU  - Richard D. Porter
AU  - Stanley N. Wiemeyer
PY  - 1972
DO  - 10.2307/1366448
UR  - https://pubs.usgs.gov/publication/5221195
ID  - 5221195
ER  -