Pair of eights.

[Cherokee]

Several pics and they almost seem to be mirroring their movements.

 

[Boll Weevil]

Siblings maybe?

 

[Ski]

Siblings maybe?

I'd bet twins

 

[Madbowh]

Love it

 

[Hillbilly Hunter]

I think the one in the front is older.

 

[backyardtndeer]

I think the one in the front is older.

I agree. Thicker neck, heavier mass.

Cool pic.