We return to find that there is a rainbow over the tribes. That's a symbol of God's promise, or else it means something about the weather. It is Day 11, and Aitu is walking into the woods. Ozzy, it appears, is pointing out a nest of boobies. As in: birds. Cao Boi starts talking about eating the birds, and Jonathan balks on the theory that the mother bird in the nest is probably guarding eggs. Cao Boi scales the tree as he voices over that "the kid in [him] wanted to get some eggs for everybody." Moreover, he explains, that same "kid" just wanted to know if he could do it. So as everyone else watches, Cao Boi climbs up the tree, gets a stick, and pokes the nest. When the nest falls, however, it turns out that there are no eggs in it. What there is, however, is a baby booby, which Jonathan picks up. Cao Boi feels very bad, and he stays up in the tree as they debate what to do. "This thing is newborn, like, today," Jonathan scolds. There's a great moment when Jonathan says that the chick is "covered in...in all of its stuff." You can trace his exact thought pattern, and you can find the precise moment when he thinks, "Huh. I thought I knew the word for that fuzzy feathery coating on a baby bird, but it turns out that I don't. I'll be darned." He interviews that the thing was so little that it couldn't even hold its head up: "I wanted to cry; I felt terrible." Cao Boi apologizes to the booby (heh) for knocking down the nest, and says that he's going to put it back. With the baby inside, Jonathan hands the nest up to Cao Boi, who sets it back on the spot where he knocked it down. Cao Boi keeps apologizing as he sets the nest back in the tree. It appears as though the booby returns to the nest (the thing about mothers refusing to touch babies in this situation is an old wives' tale, I'm told), but I'm not confident this is all going to work out so well, given the fall that baby took. Cao Boi agrees in an interview that he constantly gets himself into trouble by acting without thinking: "I should know better." Well, at least he's aware. And it's not like there aren't 400 "not the first guy to get bewildered, immature, and stupid in the presence of boobies" jokes available here, but I'll just assume you made a great one in your head, okay? I mean, even Beavis would be ten steps ahead of me here, so I don't really want to strain myself unnecessarily. Cao Boi closes with "I'm really humble." It's one of those self-canceling words.
Jeff brings the tribes to a challenge course. When they're on their mats, he invites Adam to return from Exile Island. Raro gives Adam lots of big hugs. Aitu stands there indifferently, like, "Whatever, I liked them better when they only had three gym guys." Jeff takes back the immunity idol from Jenny. He explains that the challenge will begin with four tribe members on each side assembling a stretcher. Then, those four will run through the jungle carrying the stretcher until they get to the beach. Out in the water, another tribe member will be up on a mast in shackles. One of the four stretcher folk will swim out to the mast, climb up a rope ladder, and unshackle the one who's waiting. They'll swim back to the beach together with a life ring. Then the stretcher-builders put the rescued person on the stretcher, and they carry her (it will inevitably be a "her," after all) back to the start, where your three remaining tribe members will be waiting. Those three will have to make a fire that's big enough to burn through a rope. When the rope burns, the flag drops, and you win immunity. Tribal council is for losers. Raro chooses Cristina to sit out, which seems insane to me. She's a police officer! Doesn't that logically make her more useful in a situation like this than, say, Parvati? Whatever.