Comments on: Birds: Feather Color Is More Than Skin Deep

By: matthew edmondson

matthew edmondson — Wed, 12 May 2010 15:31:27 +0000

Where do birds get their red feathers from? According to Esther del Val, from the National History Museum in Barcelona, Spain, and her team, the red carotenoids that give the common crossbill (Loxia curvirostra) its red coloration are produced in the liver, not the skin, as previously thought.

Their findings, published online in Springer’s journal Naturwissenschaften, have implications for understanding the evolution of color signaling in bird species.

By: Chase R. Massey 5th Period

Chase R. Massey 5th Period — Mon, 19 Apr 2010 13:59:00 +0000

1. Birds feathers are produced from their liver, not the skin.
2. As the bird gets older, its feather color changes.
3. Coloration is based on the health of the bird.
4. They examined the liver, blood, skin, and feathers of 7 crossbills.
5. They coordinate red, yellow, and orange coordinations.

By: Summer Berthelson 3/22/09 per 4

Summer Berthelson 3/22/09 per 4 — Mon, 22 Mar 2010 21:46:05 +0000

Have you ever wondered where a bird gets its color? If you guessed their skin you’re wrong. Birds get there red color from their liver. Feather colors also come from pigments this is responsible for yellow and orange. Researchers say that some male color comes from blood.

By: Andrew Crisp 1st

Andrew Crisp 1st — Mon, 22 Mar 2010 21:27:58 +0000

1. Carotenoids have important physiological functions such as antioxidant and immunomodulating.
2. They coordinate on red, yellow, and orange coordinations.
3. They exaimined the liver, blood, skin and feathers of seven crossbills.
4. They examined it’s color coordination.
5. And found out the key to comprehend the different evolutionary pathways involved in color signaling.

By: Marilyn Larry 6th pd

Marilyn Larry 6th pd — Mon, 22 Mar 2010 18:34:49 +0000

1. the color of a birds feather was made by the liver and not from the skin.
2. when the carotenoid pigments are transforming it takes place durectly in the follicles during the growth of its feathers.
3. There are many funtions of a carotenoid including; antioxodents, immunomodulating, and photoprocent properties.
4. Health status and nutrition is signaled by the coloration of birds.
5. The liver is the main site of carotenoids body at which coloration happens.

By: Takara Alexander 5th pd

Takara Alexander 5th pd — Mon, 22 Mar 2010 18:31:13 +0000

* researchers examined the liver skin and feathers

* their color soon change

* birds get their color from their liver

*Del val was the researcher

* The bird skin is rerd from the liver

By: Kelsey Schronce 5th

Kelsey Schronce 5th — Tue, 23 Feb 2010 16:08:45 +0000

1. A Lady named Esther del Val and her team the birds coloring of the feathers is produced in the liver.

2. Carotenoid pigments are used by many bird species as colorants and they make most of the reds, oranges, and yellows in the feathers.

3. Carotenoid-red coloration in birds has been shown to be ornimont showing the nutritional and health status of it and its ability to locate high quality resorces.

4.Researchers examined the carotenoid content of the blood,liver,skin and feathers of seven common crossbills in which adult males display carotenoid-based coloration on the throat, runmp and breast.

5.Reserchers found the primary red feather pigment of male crossbills in the birds’ liver and blood, showing that the carotenoids are synthesized in the liver and then travel to the tissues in the birds bloodstream.

By: Tara Harville- 1st per.

Tara Harville- 1st per. — Tue, 19 Jan 2010 12:42:36 +0000

It is thought that birds get there red feathers from there skin. Recent studies have suggested that the transformation of carotenoid pigments takes place directly in the follicles during feather growth. The liver acts as the main site for the synthesis of carotenoids responsible for the birds’ coloration, not the skin.
Carotenoids have important physiological functions: antioxidant, immunomodulating, and photoprotectant properties. Adult males display carotenoid-based coloration on the throat, breast and rump.

By: Takara Alexander

Takara Alexander — Fri, 18 Dec 2009 18:36:18 +0000

researchers examined the liver skin and feathers
their color soon change
birds get their color from their liver
Del val was the researcher
they discovered that the liver was the main side

By: deondre surles6th period

deondre surles6th period — Tue, 15 Dec 2009 00:28:47 +0000

Feathers show how healthy they are.

The birds skin isn’t the same color as their feathers.

As the bird gets older its color changes.

They get their color from its liver.

You can tell how old they are by their feathers.