2006 39c Peregrine Falcon, Fastest Bird
# 4057 - 2006 39c Peregrine Falcon, Fastest Bird
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U.S. #4057
Peregrine Falcon
Wonders of America
Peregrine Falcon
Wonders of America
Issue Date: May 27, 2006
City: Washington, DC
Quantity Issued: 204,000,000
Printed by: Avery Dennison
Printing Method: Photogravure
Perforation: Serpentine die cut 10 ¾
Color: Multicolored
City: Washington, DC
Quantity Issued: 204,000,000
Printed by: Avery Dennison
Printing Method: Photogravure
Perforation: Serpentine die cut 10 ¾
Color: Multicolored
The peregrine falcon is the world’s fastest bird, with the capacity to dive with speeds up to 200 miles per hour. The falcon uses its speed and agility to dive from great heights and seize prey in mid-air.
A unique one-way respiratory system combines small lungs with bellows-like air sacks to keep the falcon’s lungs constantly inflated. An exceptionally strong circulatory system and heart rate of 600-900 beats per minute maintains the high level of oxygen required for extremely high physical exertion. Cones in the falcon’s nostrils regulate breathing at high speeds with such efficiency that the design was incorporated in fighter jets.
Male peregrine falcons perform an intricate courtship ballet for potential mates. Breeding pairs mate for life and return to the same nesting area each year. Three to five eggs are incubated in nests built on high ledges.
Prior to World War II, more than 350 breeding pairs lived in the eastern U.S. Indiscriminate sportsmen, pesticides, egg collectors, and falconers, who removed chicks from their nests to train, threatened the population. The peregrine falcon was added to the endangered species list in 1970. Through careful conservation, the population grew to 174 breeding pairs by 1997. The peregrine falcon was removed from the endangered species list in 1999.
U.S. #4057
Peregrine Falcon
Wonders of America
Peregrine Falcon
Wonders of America
Issue Date: May 27, 2006
City: Washington, DC
Quantity Issued: 204,000,000
Printed by: Avery Dennison
Printing Method: Photogravure
Perforation: Serpentine die cut 10 ¾
Color: Multicolored
City: Washington, DC
Quantity Issued: 204,000,000
Printed by: Avery Dennison
Printing Method: Photogravure
Perforation: Serpentine die cut 10 ¾
Color: Multicolored
The peregrine falcon is the world’s fastest bird, with the capacity to dive with speeds up to 200 miles per hour. The falcon uses its speed and agility to dive from great heights and seize prey in mid-air.
A unique one-way respiratory system combines small lungs with bellows-like air sacks to keep the falcon’s lungs constantly inflated. An exceptionally strong circulatory system and heart rate of 600-900 beats per minute maintains the high level of oxygen required for extremely high physical exertion. Cones in the falcon’s nostrils regulate breathing at high speeds with such efficiency that the design was incorporated in fighter jets.
Male peregrine falcons perform an intricate courtship ballet for potential mates. Breeding pairs mate for life and return to the same nesting area each year. Three to five eggs are incubated in nests built on high ledges.
Prior to World War II, more than 350 breeding pairs lived in the eastern U.S. Indiscriminate sportsmen, pesticides, egg collectors, and falconers, who removed chicks from their nests to train, threatened the population. The peregrine falcon was added to the endangered species list in 1970. Through careful conservation, the population grew to 174 breeding pairs by 1997. The peregrine falcon was removed from the endangered species list in 1999.