TY  - RPRT
TI  - The importance of Sky Islands in the annual cycle of the Western (Cordilleran) Flycatcher Empidonax occidentalis
AU  - Charles van Riper
AU  - Harold F. Greeney
PY  - 2023
UR  - https://pubs.usgs.gov/publication/70254271
ID  - 70254271
ER  -