Science Fair Project Encyclopedia
Speculum feathers
The speculum feathers are the inner (secondary) flight feathers of a duck. They are often brightly coloured, especially in dabbling ducks, and can help to identify a duck in flight.
Examples are:
- Common Teal: green
- Green-winged Teal: green
- Blue-winged Teal: blue
- Mallard: white-edged purple-blue
- American Black Duck: purple-blue ( not edged white)
- Northern Pintail: greenish black, edged white at back and orange in front
- Gadwall: small and white, but only obvious in male
- Yellow-billed Duck: green or blue, bordered white
03-10-2013 05:06:04
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details