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Cardinal,
Northern

(Cardinalis cardinalis)
Northern Cardinal (Cardinalis cardinalis)
Warrenton, Virginia
photo by D.W. Maiden Warrenton, Virginia
While now considered a wild bird, in the 19th century the Northern Cardinal was a much sought after cage bird. Thousands of Cardinals were trapped in the winter in southern states to be sent to the north. Many more Cardinals were sent to Europe. This practice ended with the passage of the Migratory Bird Act of 1918. Northern Cardinals are also known as Virginia Nightingales and Redbirds.
Gallery pages:  1  2  3  4  5  6  >  
< Prev 1 of 86 Next >
 > Female Northern Cardinal
Picture taken in Warrenton, Virginia
(Cardinalis cardinalis)
photo by D.W. Maiden Warrenton Virginia
 > Male Cardinal Picture taken in Warrenton, Virginia(Cardinalis cardinalis)photo by D.W. Maiden Warrenton Virginia
 > Male Cardinal Picture taken in Warrenton, Virginia(Cardinalis cardinalis)photo by D.W. Maiden Warrenton Virginia
 > Male Cardinal Picture taken in Warrenton, Virginia(Cardinalis cardinalis)photo by D.W. Maiden Warrenton Virginia
 > Female Cardinal Picture taken in Warrenton, Virginia(Cardinalis cardinalis)photo by D.W. Maiden Warrenton Virginia
 > Female Northern Cardinal Picture taken in Warrenton, Virginia(Cardinalis cardinalis)photo by D.W. Maiden Warrenton Virginia
 > "The cardinal you photographed looks very much like a bilaterally symmetrical gynandromorph, but not perfectly defined.  I captured a cardinal similar to your description a few years ago while banding, although the cardinal I captured was more bilaterally defined between male and female.  It is unlikely that a cardinal at this time of year would have juvenal plumage.

This anomaly occurs when a sex chromosome is eliminated from a cell during cell division.  The cell of which the chromosome is lost subsequently develops into the tissues of the opposite sex.  Usually, this happens later in development in which case the plumage develops into a mosaic representing both sexes.  I also captured an evening grosbeak showing such characteristics.  In the cases of your cardinal, this would have had to occurred at the first cell division."

  Mitchell A. Byrd, PhD
  Chancellor Professor of Biology
  College of William and Mary
  mabyrd@wm.edu
  
 Picture taken in Warrenton, Virginia March 2, 2009(Cardinalis cardinalis)photo by D.W. Maiden Warrenton Virginia
 > "The cardinal you photographed looks very much like a bilaterally symmetrical gynandromorph, but not perfectly defined.  I captured a cardinal similar to your description a few years ago while banding, although the cardinal I captured was more bilaterally defined between male and female.  It is unlikely that a cardinal at this time of year would have juvenal plumage.

This anomaly occurs when a sex chromosome is eliminated from a cell during cell division.  The cell of which the chromosome is lost subsequently develops into the tissues of the opposite sex.  Usually, this happens later in development in which case the plumage develops into a mosaic representing both sexes.  I also captured an evening grosbeak showing such characteristics.  In the cases of your cardinal, this would have had to occurred at the first cell division."

  Mitchell A. Byrd, PhD
  Chancellor Professor of Biology
  College of William and Mary
  mabyrd@wm.edu
  
 Picture taken in Warrenton, Virginia March 2, 2009(Cardinalis cardinalis)photo by D.W. Maiden Warrenton Virginia
 > Male Cardinal Picture taken in Warrenton, Virginia(Cardinalis cardinalis)photo by D.W. Maiden Warrenton Virginia
 > Male Cardinal Picture taken in Warrenton, Virginia(Cardinalis cardinalis)photo by D.W. Maiden Warrenton Virginia
 > Male Cardinal Picture taken in Warrenton, Virginia(Cardinalis cardinalis)photo by D.W. Maiden Warrenton Virginia
 > Male Cardinal Picture taken in Warrenton, Virginia(Cardinalis cardinalis)photo by D.W. Maiden Warrenton Virginia
 > Male Cardinal Picture taken in Warrenton, Virginia(Cardinalis cardinalis)photo by D.W. Maiden Warrenton Virginia
 > Male Northern Cardinal Picture taken in Warrenton, Virginia(Cardinalis cardinalis)photo by D.W. Maiden Warrenton Virginia
 > Male Northern Cardinal Picture taken in Warrenton, Virginia(Cardinalis cardinalis)photo by D.W. Maiden Warrenton Virginia
Female Northern Cardinal
Picture taken in Warrenton, Virginia
(Cardinalis cardinalis)
photo by D.W. Maiden Warrenton Virginia
 > Female Northern Cardinal
Picture taken in Warrenton, Virginia
(Cardinalis cardinalis)
photo by D.W. Maiden Warrenton Virginia
Female Northern Cardinal
Picture taken in Warrenton, Virginia
(Cardinalis cardinalis)
photo by D.W. Maiden Warrenton Virginia
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