Crows do not plan their clever tricks

http://phys.org/news/2012-10-crows-clever.html

Alex Taylor and his colleagues in New Zealand continue to probe the limits to corvid intelligence. Here they report using an old test of bird intelligence - whether the bird can plan its actions to successfully retrieve food, or whether it simply reacts quickly to a random guess. The birds are presented with a number of strings. Food is attached to some such that pulling on the string will retrieve the food. In others there is a break in the string between bird and food. Do they "case" the problem and select for continuous string? The answer is no.

The full paper is at  http://dx.doi.org/10.1098/rspb.2012.1998?utm_source=royalsociety-org&utm_medium=referral&utm_campaign=journal-news&utm_content=2012-10-24