TY  - RPRT
TI  - Ecology and physiology of en route nearctic-neotropical migratory birds: A call for collaboration
AU  - P.J. Heglund
AU  - S. K. Skagen
PY  - 2005
DO  - 10.1650/7806
UR  - https://pubs.usgs.gov/publication/1015300
ID  - 1015300
ER  -