Vinyl animal using subway wind pressure

Art of an animal made with a plastic bag that stands up using the wind pressure of the subway running in New York. By the wind pressure which is not constant, you can see movement as if it were alive.

Details are as below. Air bear set above the vent.
YouTube - Air Bear (Seen On The Streets Of New York)


Air zoo by Joshua Allen Harris who made the upper air bear. It is quite lively, but it disappears only when there is no wind.
YouTube - Air Zoo (Seen On The Streets Of New York)


It suddenly comes up at night, it looks pretty scary.
Wooster Collective: Street Art At Its Best # 3: Plastic Bag Animals