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Home
Stories
Studies
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Experiences
Home
Stories
Evolution
Adaptation
Convergence
Selection
Natural Selection
Sexual Selection
Ecology
Annual Cycles
Disease Ecology
Form & Function
Beaks
Feathers
Behavior
Communication
Migration
Catch the Latest News
Studies
Discover our Collections
Meet our Scientists
Team Bios
Team Blogs
News
Media
Art
Audubon Gallery
Charles Knight
Fuertes Gallery
Rare Book Gallery
Sutton’s Baby Birds
Photos
For the Birds Gallery
Green River Bird Fossils
Historical Photo Archives
Images from the Exhibits
Wednesdays in the Birds Prep Lab
EOL Collections
Videos
Bird People Videos
Expeditions Videos
Field Revealed
From the Exhibits
A Passion for Birds
American Goldfinch
Blue Bird-of-Paradise
Common Nighthawk
Downy Woodpecker
Eastern Towhee
Great Horned Owl
Great Tinamou
Hairy Woodpecker
Hoatzin
Peregrine Falcon
Pink necked pigeon
Red-eyed Vireo
Red-tailed Hawk
Satin Bowerbird
Song Sparrow
Southern Brown Kiwi
Historical Bird Videos
Science@FMNH
Experiences
Go Birding
Birding Downtown Chicago
Birding Resources
Social Networks
Catch the Latest News
Dave Willard at the sink
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Item 19 of 22
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Description:
Dave Willard at the sink using his magnifying glasses to check on the sex of birds.
