You have neither Araucana (by European or American standard) nor an Orpington. The Lavender bird looks like it might be a U.K./Australian Araucana mix (no crest and has yellow skin), definitely a pullet. The other looks like a Blue Jersey Giant, and with how patchy the coloring is, I'm betting it's a cockerel.
Please could u let me know if u have any idea on the sex of my 10 week old aracarna and Orpington
There is no Orpington or Brahma in that bird. It's a Columbian Plymouth Rock. And that's a cockerel.I have a buff Orpington/brahma cross that I thought was a hen. He/she is about 10 weeks old and I need helping sexing. I'm starting to think Minnie is a Mickey. Any help would be great thanks!
The black one is a Black Australorp. The one in the background looks like a white leghorn( hard to tell), and the brown one is an Ameraucana(not American! Don't worry, people mess it up all the timeWell, I had a bad situation on Friday, when I moved my babies, silkie, spots(not sure of breed), red (not sure of breed) blackey (ausi-lopp). to their new coop. Didn't finish the run so temporarily closed off coop. Well my dog decided to break in, after all these weeks being around them. I caught him in the act of chasing them and the brown one and silkie died in front of me from shock, within minutes. The black ausi, I couldn't find, Searched everywhere with Spots helping me and calling for his friends. Heart breaking, I raised them all from two days old. They were very attached to each other as well, including silkie. I worried about having just one left that would need companions. I searched craigslist and found a farmer that wanted to down side. I got another ausi-lopp, and was sold another she called a American. Around five to six weeks old. I couldn't find anything on American breed, so not sure what this one is. My problem now, I think the ausi is a male and now looking at my spots chicken, I am concern this is also a male. My daughter found a neighbor selling silkies so she brought me two of these, a blue and white. Not concerned yet on their sex yet as they are only three weeks old. I am sending a picture of my original group together.
My babies ( I miss them)
.
Spots and new Ausi (males or females?)
Spots in background, Black one is a ausi and told the brown one is an American(I am not sure of this breed?)
). The BA looks like a possible roo, the WL I can't really tell, appears to be a pullet, and the Ameraucana I cannot tell, it's head is blurred in the picture. I'm sorry about your chickens and I hope you have fun with the new ones 
Sorry about your chicks. It's very sad. The Ameraucana (EE actually, since it is a non standard color) is probably a male with all the dark red coloring across the wings. A good close up pic of the comb would help. If the black Australorp is really only 6 wks old, then it is a male. Your Spots is not a Leghorn, but looks like an Austra White which is a cross between an Australorp and a Leghorn and explains why Spots has dark legs. Need to know how old Spots is before sexing.Spots in background, Black one is a ausi and told the brown one is an American(I am not sure of this breed?)
.
