September 1st marks the 100th anniversary of the death of Martha, the last of the passenger pigeons, who died in the Cincinnati zoo in 1914.
The Lost Bird Project has a site, Fold the Flock, where you will find origami instructions and paper templates for making origami passenger pigeons, along with videos and other information. One video animation recreates the experience of passenger pigeons so numerous that they darken the sky. This would be a great art/fine motor/biology project for elementary-age children.
The free downloadable PDF file with bird markings and instructions is right at the bottom of this link.