Western scrub-jays make provision for the future by both preferentially caching food in a place in which they have learned that they will be hungry the following morning, and by differentially storing a particular food in a place in which that type of food will not be available the next morning. Thus jays, it seems, can spontaneously plan for tomorrow without reference to their current motivational state.
- C. R. Raby
- D. M. Alexis
- N. S. Clayton
