With this interactive tutorial, students explore the evolutionary adaptation of feathers in birds.

This video describes the mutualistic relationship between the Clark's nutcracker and the whitebark pine tree and how this relationship may be being impacted by climate change.

In this video, John Fitzpatrick, Director of the Cornell Lab of Ornithology, gives his perspective on the BP Deepwater Horizon Oil Spill one year later.

In this interactive, students explore evolutionary relationships between tanagers. They will investigate why one species is much drabber in color than the others and determine whether this is a case of fanciness lost.

This video describes how natural and sexual selection can shape the way animals look and act.

This article outlines the nine most important things to know about bird song and includes audio examples.

This video describes how Herring and Great Blac-backed gulls in a crowded breeding colony on Maine's Appledore Island coexist. The signals that the gulls have evolved to prevent violent clashes are also discussed.

In this video, scientists and resource managers speak about balancing the need to manage the Mississippi River Delta for flood control and navigation with the need to maintain a healthy delta ecosystem.

With this interactive, based on the Wall of Birds mural, students explore species from all surviving bird families alongside a select group of extinct ancestors. Students can make comparisons of anatomy, native ranges, and distinctive voices.

In this module, students view brief video clips that show some of the most unusual and extravagant methods birds use to attract attention.