Bird ID
Artist James Prosek’s Ode to the Diversity of Bird Shapes
video 5:48
The Black Sicklebill transformed during courtship display
Black Sicklebill: The Thin Blue Line
video 2:51
A diagram showing the transformation of the Superb Bird-of-Paradise during courtship display
Superb Bird-of-Paradise: Psychedelic Smiley Face
video 4:30
Bird biology birding by size and shape
AnatomyBird ID
Inside Birding: Size & Shape