Saw this video at The National Audubon Societies Facebook page of a playful crow using what looks like a bottle cap as a sled and is sliding down the roof of a building!
Video shows the ingenuity of birds. They have always been my favorite animal! Some scientists over-think the reason why this bird was doing this. Anyone who watches the behavior of birds, their pets and wildlife know that most animals like to play. Reminds me of quote from Star Trek:
“The more complex the mind, the greater the need for the simplicity of play.” – Captain Kirk
The more intelligent species have a stronger desire to find ways to entertain themselves, other than basic survival needs. That would mean that a large portion of various species of animals are intelligent.