3 chickens without a breed can someone help?

[bman8520]

 

[Lothiriel]

Buff Orpington or NHR? RIR, and ?? possibly EE? (clockwise from top left)
And

 

[bman8520]

still no names for them we just call them red, yellow, and black lol that was the colors when they were 2 weeks old i was thinking yellow was a leghorn but as she got old i got lost lol RIR makes since because of the lighter with black accents on the wings and tail feather. red is most def. a RIR but black still puzzles me. when we got her i thought sicilian butter cup becasue we live in sicily but now she is older and her comb is a pea easter egger but then again she has yellow legs so maybe she is a RIR hybrid i cant wait to see eggs