TY  - RPRT
TI  - Aging tricolored blackbirds by cranial ossification
AU  - R. W. DeHaven
AU  - F.T. Crase
AU  - M. R. Miller
PY  - 1974
DO  - 10.2307/4512024
UR  - https://pubs.usgs.gov/publication/1007688
ID  - 1007688
ER  -