Avian Cooperatives!
By Bruce Deuel, Redding.com
About 3 percent of the world's birds breed cooperatively. That is, they live in groups in which several non-breeding members of the group help the breeding members with all the chores involved in raising the next generation.
One of the best studied of these cooperative societies is that of the acorn woodpecker...
Support GEO - Buy a Printed Copies of Back Issues
GEO is a volunteer-run collective and relies on your generosity. We make our content free but also sell printed back issues in our store - each full of of grassroots documentation from activists and innovators.
The trailblazing GEO 8: Worker Cooperative Development Models is available in a special printed 36-page magazine format. Buy it in our online store, or contact GEO for bulk purchases or resale.
All purchases help fund GEO, a volunteer-run collective project of the Ecological Democracy Institute of North America.



