Greater Sage-Grouse males fight
Behavior
On a Sage-Grouse Lek: It's My Turf
video 2:05
Songs + Calls
How and Why Birds Sing
article
BehaviorSongs + Calls
Songbirds in Action
Interactive Feature
Territorial gulls coexist on Appledore Island in Maine
Behavior
Keeping the Peace: Threat Signals in Gull Colonies
video 3:59
Male Red-winged Blackbird spreads his wings
Behavior
Brilliant Flash: Red-winged Blackbird Territorial Displays