tags: ravens, Bernd Heinrich, genius bird, National Geographic, streaming video
This interesting National Geographic video shows how Bernd Heinrich designed an experiment to test the intelligence of ravens [2:07].
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Genius Bird
Topic Categories: Behavior • Streaming videos
Posted on: November 14, 2008 8:59 AM, by "GrrlScientist"
Find more posts in: 
Brain & Behavior
Life Science
Brain & BehaviorLife Science
Comments
There is a wild avocado tree on North Garfield Street in Alhambra, California. (The fruits are very small). When the fruits ripen, the ravens come for a feast. They will defend the tree, trying to drive off unwary pedestrians.
In neighboring San Marino, I've seen ravens at a four-way-stop intersection dropping the acorns from live oaks onto crosswalks, but only on the right side of the road. Here is where cars go the slowest as they come to a stop, and then pull away, breaking the acorn hulls. Cars going over acorns at higher speed shatter them, so apparently ravens like their acorn meat chunky style, not creamy.
Posted by: 6EQUJ5 | November 14, 2008 1:03 PM
Thanks for posting this. I remember seeing it on televsion a long time ago and it stuck with me ever since. It's great to have a copy of it. Thanks again.
Posted by: bob levy | November 14, 2008 7:59 PM
Thanks for submitting this post to our blog carnival. We just published the 42nd edition of Brain Blogging and your article was featured!
Thank you.
Sincerely,
Shaheen
Posted by: Shaheen Lakhan | December 26, 2008 12:17 PM