You know, there's a bird in these jungles - kind of a parrot, laughs like a man. They call 'im a Laughing Jackass. Funny name for a bird. I don't know, when you figure out he laughs like a man, that's not such a funny name after all.

17 seconds sound clip from the Island of Lost Souls (1932) movie soundboard.

You can hear this line at 00:48:07 in the Blu-ray version of the movie.

Quote context

[...]

- You see some funny sights in these islands.

- That jungle don't look any too inviting.

- We must go on. We've got to find him.

- All right. But I'd just as soon leave it for somebody else to do if there was anybody else here to do it.

(Screeching)

- You know, there's a bird in these jungles - kind of a parrot, laughs like a man. They call 'im a Laughing Jackass. Funny name for a bird. I don't know, when you figure out he laughs like a man, that's not such a funny name after all.

- You're taking a very long time, Montgomery.

- There's a short circuit here somewhere.

- They come on boat!

- Who?

- People.

- People?

- Two. One like Lota.

[...]