This research suggests a couple of things. First, crows are intelligent enough to know a person who has done something scary to them. They recognize individual people and can tell us apart by facial recognition. Second, they can communicate information about individual people to each other. Even crows that had not been scared by certain individuals knew the particular face that belonged to a person who was a potential threat. This suggests that their communicative powers are better than we might have expected. Whatever the mechanisms, the communication methods are sufficient to communicate complex information about facial characteristics.
I am inspired by the intelligence of both the birds and the researchers. The researchers carefully designed their field research and were alert to test alternate theories. As the researchers readily admit, it is field research, as opposed to the controlled setting of a laboratory, and is therefore messy; but by not over-interpreting the results these investigators have contributed to the scientific knowledge base. The crows have once again shown themselves to be intelligent, protective, and communicative. This is another testimony to the glory of our God who created birds with intelligence. This inspires me to praise men, crows, and God.
"Crows Share Intelligence About Enemies;" CBC.ca/Technology and Science; June 30, 2011 (accessed 2013-11-17) http://www.cbc.ca/news/technology/crows-share-intelligence-about-enemies-1.1014915.