An Israeli geneticist, Avigdor Cahaner of the Hebrew University of Jerusalem, created a bare-skinned "prototype" red-skinned chicken by selectively crossing a breed with a naturally bare neck with a regular broiler chicken. Broiler chickens have been bred to gain weight rapidly but in the process generate a lot of heat. Farmed chickens are kept at about 20°C - the optimum temperature for weight gain.
In warm countries, expensive air conditioning is necessary to keep to this temperature - this cannot be afforded by poorer farmers, Cahaner says. Benefits of not having feathers: nutrients wouldn't go into producing feathers and no feathers to get rid of at the end.
"Feathers are a waste. Chickens use feed to produce something that has to be dumped and farmers waste electricity to overcome the fact," Canaher said. Plucking also requires large amounts of water.
 Order: Passeriformes, Family: Corvidae American Crows are native to the Nearctic region all over North America. They can be found in the lower part of Canada and through the continental United States.
Adult American Crows are completely black birds weighing on average 450 g. The feathers have a glossy and slightly iridescent look. Crows have strong legs and toes. The bill is also black with a slight hook on the end. Stiff bristles c...
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 Order: Falconiformes, Family: Accipitridae Snail Kites can be found in both South and Central America. Some are also found in Mexico and Cuba. The United States also has a small population concentrated in Florida.
Mass: 340 to 567 g.
Snail kites are medium-sized hawks, weighing from 12-20 oz. They are about 14-16 inches long and have a wingspan of 43-36 inches. The females are very slightly smaller than the male.
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 by David Rennie An army of 700,000 specially trained ducks and chickens has been mobilised to help fight China's biggest locust plague in 25 years. The birds, which are taught to pursue and eat locusts at the sound of a whistle, are part of a national campaign that includes 280,000 people backed by crop-dusting planes and special locust-killing micro-organisms imported from Britain. Swarms of locusts have d...
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 Coming from Spain, this breed arrived in the US via the Caribbean Islands. Spanish are the oldest breed of chickens existent in the US today. At one time known as "The Fowls of Seville", they were very popular in the South during the Colonial period. The large area of snow white skin surrounding the face and wattles makes this breed unique. Actually this is an over developed earlobe.
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 The hornbill is a big, spectacular bird with a massive "double-story" bill consisting of a long, deep beak with a projection (known as a casque) on top.
Hornbills usually have large heads, thin necks, broad wings and long tail feathers.
There are 46 species of hornbill in Borneo, with the four most prominent being the black, pied, rhinoceros and wreathed hornbills.
All are basically blac...
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 Order: Passeriformes, Family: Corvidae Nearctic: Breeding range: The Gray Jay is found from tree line in northern Canada and Alaska south through boreal and subalpine forests to northern California on the west coast, Arizona and New Mexico in the Rocky Mountains, northern Wisconsin in the midwest, and New York in the east.
Winter range: The non-breeding range is essentially the same as the breeding range, as the Gray Jay does not mig...
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