I saw a very interesting variant of the Scarlet Tanager in Shady Side, Md.  I have never seen the orange variant but will never forget it.  Really a striking bird.  He remained in the yard for several minutes and I noted that his call note was varied as well.  The traditional "chip-burr" was a "chip - chip burr"  the first part was more like a studder.  
 
How common is this variant?
 
Terry
 
________________________________________________________________________
AOL now offers free email to everyone.  Find out more about what's free from AOL at AOL.com.