Birds have bellies just like we do, low on their bodies just like ours. 

Occasionally the belly is a different color than the rest of the bird. 

Did you know that eastern bluebirds have white bellies?  My first field guide illustrated all the birds from the side, so I thought bluebirds had orange bellies just like robins.  I was quite surprised when I saw my first bluebird from the front.  The pink arrow shows you what I saw.

For really surprising belly colors, look at ducks.  When ducks swim their bellies are below the water line so you naturally assume their bellies match their breasts.  Not always. 

Check out the bellies on gadwalls, wigeons, and green-winged teal — if they’ll show them.  You’re in for a surprise.

(photo by Marcy Cunkelman)