TY  - RPRT
TI  - Siblicide, splayed-toes-flight display, and grappling in the Saker Falcon
AU  - D. H. Ellis
AU  - P.L. Whitlock
AU  - Pu Tsengeg
AU  - R.W. Nelson
PY  - 1999
UR  - https://pubs.usgs.gov/publication/5223825
ID  - 5223825
ER  -