Contaminated?

[Craigweiser]

Brewed a Kentucky breakfast stout nearly 3 months ago at 8-9% abv. Took a sample from secondary via thief last week. Saw bubbles on the top of the beer. Does this look like bacteria or wild yeast contamination?

 

[day_trippr]

The photo isn't the best to diagnose such matters, but assuming the greenish floaty things are dry hops (on a stout?) it doesn't look really look like a classic pellicle from here.

How did the sample smell/taste?

Cheers!

 

[Mongrel]

What yeast did you use? I've had Nottingham do that, it just wouldn't drop.