Hi everyone! This is my first time with backyard chickens. We bought our chicks 4 months ago and was told we were getting 2 Easter Eggers and 3 Australorps. The problem is one of our Australorps looks completely different than the other two. Did I end up with a rooster? Or maybe I was told the wrong breed? If anyone could help me out it would be very much appreciated! We're not allowed roosters where we live so I've really been stressing about this. 
As you can see one looks a lot different from the others but I don't believe it has a spur. From what I've been reading it should have a spur if its a rooster.

Here's another picture with all 5 of our (hopefully all) girls
I can add a closer up picture if it's needed. And thank you to anyone who can help me out!
As you can see one looks a lot different from the others but I don't believe it has a spur. From what I've been reading it should have a spur if its a rooster.
Here's another picture with all 5 of our (hopefully all) girls
