News tagged with feather

From Chicken Feathers to Flower Pots

Chicken feathers, usually an unwanted byproduct of poultry processing, may have a more valuable future as an ingredient in biodegradable flower pots, according to an Agricultural Research Service (ARS) scientist.

Sep 09, 2009 4.3 / 5 (3) 0

When a whistle beats a tweet

Biologists have discovered that a species of Australian pigeon has a secret way of alerting fellow birds to predators -- a "whistle" emitted by flapping wings when the bird takes off in alarm.

Sep 01, 2009 not rated yet 1

What limits the size of birds?

Why aren't birds larger? Fifteen-kilogram swans hold the current upper size record for flying birds, although the extinct Argentavis of the Miocene Epoch in Argentina is estimated to have weighed 70 kilograms, the size of ...

Jun 16, 2009 5 / 5 (7) 2

Feather color is more than skin deep

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 ...

Apr 15, 2009 3 / 5 (1) 0