Unusual Rose-Breasted Grosbeak update

I emailed the pic into BirdersWorld.com and here's the reply:

Hi Jennifer and David,

Thanks for writing. The yellow coloring is quite unusual, but not unheard of. Whereas albinism refers to excess white plumage, xanthochromism is the term for excess yellow plumage. There’s more about it here:

http://en.wikipedia.org/wiki/Xanthochromism

I’d also like to suggest that you submit it to our “atypical birds” gallery of images.

http://cs.birdersworld.com/brdcs/photos/atypical_birds/default.aspx

Thanks,
Matt