1. , inits food sources. If the bird has no chance of meeting the required
2. M. Bateson, and Interval , inFrontiers of Life,Baltimore, D., Dulbeco, R., Jacob, F., and Levi-Montalcini, R., Eds., Academic Press, New York,2001 , pp.241 -250 .
3. Accuracy of memory for amount in the foraging starling,Sturnus vulgaris