Tower Crane Stub #2 at One Grant Park, courtesy of a reader.

A little birdie told us the second tower crane stub arrived at One Grant Park on Wednesday, and proved it with a couple photos. Birdies are smart. And good sharers.

McHugh Construction got the second permit on August 24, then got a foundation permit for it on August 29. 12 piles were driven into the ground for support, and now the stub stands ready for a “free-standing Pecco SN 160 tower crane.”