![](/img/cover-not-exists.png)
The Economics of Getting High: Decisions Made by Common Gulls Dropping Cockles to Open Them
Ken Norris, Adrian Freeman and Julian F. V. VincentVolume:
137
Language:
english
Journal:
Behaviour
DOI:
10.2307/4535738
Date:
June, 2000
File:
PDF, 670 KB
english, 2000