Stages of Plumage, From Juvenile to Adult.
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Stages of Plumage, From Juvenile to Adult.| Cumbrian |
Posted: Jan 10 2008, 12:18 PM
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Advanced Member  Group: Moderators Posts: 65,849 Member No.: 63 Joined: 7-June 06  |
As the eagles mature from Juvenile to Adult their plumage changes.
The photographs of A-40 .. A-33 & K-26 were taken from the March 15th, 2007 .. SC Update. .... More photos will be added as/when they are posted on the forum. I added the photograph of A-24 on September 1/10 ... to show a 3 year old's plumage.  This shot of A-40 was taken at about 1 year of age. You can see the different levels of 'fade' in the feathers. The very dark brown feathers on the back are probably freshly grown, whereas the blonder feathers are most likely older.  This picture of A-33 really show off the varied plumage of a typical 2 year old.  This is A-24 .. Class of 2004 .. taken in January 2007 .. as a 3 year old.  Here's K-26 at 4 years old. She has they typical white-head of a mature adult, but still has a lot of brown in the tail. |
 
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| Cumbrian |
Posted: Sep 1 2010, 12:56 PM
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Advanced Member Group: Moderators Posts: 65,849 Member No.: 63 Joined: 7-June 06 |
Just for fun ... here is K-83 ... Star ... Class of 2008.
This is how all the eagles start out!  TH chicklet, K-83(f) Star, 1 day old. Egg retrieved from the TH nest and hatched at the IWS lab.  Fostered back into the nest when she was 1 week old. See her full crop.  ...............................................Before banding. ......................................  ................................................8 weeks old ... Banding Day. |
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| Cumbrian |
Posted: Sep 2 2010, 09:29 AM
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Advanced Member Group: Moderators Posts: 65,849 Member No.: 63 Joined: 7-June 06 |
Here are photos of A-46 .. Class of 2006 .. showing the gradual change in his plumage.
I couldn't find a photo of him at 1 years old .. he did a lot of travelling.  Spotted in Vancouver, B.C. Canada .. December 2006.  In Oregon .. October 2008.  In Goleta, CA February 2009.  Fry's Harbor, Santa Cruz Island. June 2010. |
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