How dramatically did the beaks shrink in this 2003 episode?
I found one article that gave the results of the Grants' measurements from earlier episodes, but not the 2003 drought.
IIRC the 1970's drought resulted in a 4% increase in beak size (with no competion from the large ground finch). And in the 1980's the beaks size dropped something like 2.5%. Was the 2003 change within that range, or more dramatic?
Thanks---IGIT