In this April 1, 2011 photo, Tulane University population ecologist Jessica Henkel sets up a net to catch migrating birds for blood, fecal and feather samples on Fourchon Beach in Port Fourchon, La., ... more 
In this April 1, 2011 photo, Tulane University population ecologist Jessica Henkel sets up a net to catch migrating birds for blood, fecal and feather samples on Fourchon Beach in Port Fourchon, La., as part of a research project that is looking for long-term, not immediately lethal effects from the BP PLC oil spill on birds that stop along the Gulf Coast during their migration. “It's much easier to see a dead pelican on the beach” than it is to see more chronic population-wide effects, Henkel said. less 
1 / 1
Associated Press | Photo By Patrick Semansky
Mon, Apr 18, 2011 8:19 AM EDT