The rescue of dozens of seabirds contaminated by mystery goo in the bay is proving to be pretty costly.
International Bird Rescue, the organization that brought in so many of the birds, said on Tuesday that it's spent $150,000 cleaning them up.
While 300 of the birds have died, some 78 are still being treated.
And because the goo didn't come from a spill or leak, International Bird Rescue has had to cover the entire cost.
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PHOTOS: Clean seabirds released back into wild after being covered in mystery goo