Clattering Penguins and Naughty Seals | Epic Adventures with Bertie Gregory on Disney+

Chin straps get their name from that black marking that runs under their chin. Uh, and they're also sometimes called stone breaker penguins because of that ear-piercing screech.

They're really sociable birds that waddle ashore in these massive numbers to nest. Over a million breeding pairs have been recorded in a single colony. They go to pretty extreme lengths to climb up and make a nest with a view.

There is a lot of penguins here. Every ridge we've got and every little corner we've gone around, there's just more and more chinstrap penguins. There must be tens of thousands of birds here. It just goes to show how much food there must be in that ocean to support all of these mouths.

Well, there's no food for the penguins on land, so every morning they line up like thousands of commuters at rush hour to hit the water. It's an amazing scene. So I'm going to set up down at the shoreline, but we do need to keep an eye out for the other locals.

So with no natural predators on land and almost no human contact, these Antarctic fur seals have never developed a fear of people.

"Okay, okay, hey that's close enough, go on! No, keep going."

So these are the naughty ones. "Wait, back up! You just gotta, uh, yeah, remind that we're not a chew toy. Keep going." There we go, and they're usually pretty obedient.

Epic adventures with Bertie Gregory. A Disney Plus Day premiere September 8th on Disney Plus.