TY  - RPRT
TI  - Occupancy patterns of regionally declining grassland sparrow populations in a forested Pennsylvania landscape
AU  - Jason M. Hill
AU  - Duane R. Diefenbach
PY  - 2014
DO  - 10.1111/cobi.12210
UR  - https://pubs.usgs.gov/publication/70187417
ID  - 70187417
ER  -