TY  - RPRT
TI  - Post-breeding territoriality and foraging behavior in Costa's Hummingbird (Calypte costae)
AU  - Michael L. Avery
AU  - Charles van Riper
PY  - 1993
DO  - 10.2307/3671618
UR  - https://pubs.usgs.gov/publication/70128725
ID  - 70128725
ER  -