"You need to reach the mountain before the last days of autumn", it was a statement, not a question. "Before Durin’s Day falls, yes" "You are running out of time" "Which is why we must go through Mirkwood", Thorin was hearing too much as soon as Mirkwood was being said. That was the last time he had to hear the elves come into play. 

Maleficent stood close to Kili as his head was being bowed down, laying a soothing hand upon his forearm.

"A darkness lies upon that forest, fell things creep beneath those trees. There is an alliance between the Orcs of Moria and The Necromancer in Dol Guldur. I would not venture there, except in great need", Beorn told the wizard of the dangers within the forest.