Mystery Nest or Not – mystery solved

p1100264We were out for a walk and saw a strange looking object in a tree. We first surmised that it was a nest. It looks as if the limbs and pinecones were woven or piled to make it somewhat of a dome shape and the new growth is a healthy green.
However, It’s awfully far out on limb for such a large nest and it’s quite late in the year for a new nest.

I surfed the internet and can’t find any critter that builds a nest like this.
We’ve finally loosely decided that possibly during a wind gust that the twigs and pinecones got trapped in the Y of the limb forming a platform of sorts and the new growth sprouted out of it and made the dome shape.

Do you recognize this and what it may be?
I’d love to hear your thoughts.
p1100098
p1100099
p1100261
p1100264

edited in 11-29-2016:
I’m happy to report that Jane Tims has solved the mystery nest; it’s called a “Witch’s Broom”
It’s an over-growth that can be caused by various things. Jane Tims has an interesting post that explains about it called “Witch’s Broom”  If you get a chance pop over and read it.
Thanks so very much Jane for solving my mystery. 🙂

.