Looks like there's about three of them.
2 seconds sound clip from the Three Amigos (1986) movie soundboard.
You can hear this line at 00:32:56.435 in the Blu-ray version of the movie.
Quote context
[...]
- Madre de Dios! Bandidos! Bandidos!
- Sooner than expected. I must warn the Three Amigos.
- They are coming! They are coming!
- Who?
- Already? Well, we'll start to get ready then.
- They want us to do the show now.
- Great! I thought we were going to have a rehearsal.
- So what? They've probably done it a million times, and we know what we're doing.
- Looks like there's about three of them.
- Perfect. Rodrigo said there'd be 50, now there's three.
- They better not try to cut our money.
- Where's our tequila? We're waiting!
[...]