The reason I think that blue EE is a roo is because the hackle feathers look pointed and the tail is a bit long and the longest feathers looks like it is starting to curve. EE roos usually don't have big combs and wattles and they are usually slow to develop. However, I could very well be wrong. The "Other RIR" looks like it has pointy hackle feathers, but don't RIRs usually get big combs and wattles? And for some reason, it looks hen-ish to me.
And yes, I do see my contradictory statements that the EE looks roo-ish because of pointy hackle feathers and that the RIR look hen-ish despite the pointy hackle feathers.
I do agree with PotterWatch regarding posting other eggs. That'd help solve the "is there a roo" question before the "who's the roo?".
And yes, I do see my contradictory statements that the EE looks roo-ish because of pointy hackle feathers and that the RIR look hen-ish despite the pointy hackle feathers.

I do agree with PotterWatch regarding posting other eggs. That'd help solve the "is there a roo" question before the "who's the roo?".