Jay Holcomb, executive director of International Bird Rescue, poses for a portrait. IBC has been involved in the triage, cleaning, and rehabilitation of wildlife impacted by the BP oil spill. ..Photographs of people impacted by the Deepwater Horizon Oil Spill. The spill is estimated to be gushing 35,000 to 60,000 barells of oil into the ocean per day. Difficulties installing monitoring devices at the source have made this number difficult to clearly ascertain. The spill is among the world's worst.