It has been pointed out to me that the warbler I reported
yesterday in College Park is much more likely to be Palm,
not Prairie, at this time of year.  Given that possibility
I'm now unsure of the original ID, so I'm retracting it.  
Sorry for the confusion!  I'll be more careful in the
future.  And thanks for pointing out these rookie mistakes!

Good birding,

D

-- 
Derek C. Richardson, Ph.D. (CANTAB) ________
Astronomy, U Maryland, College Park MD 20742
Tel: Office 301-405-8786 Fax 301-314-9067 __
Home page: http://www.astro.umd.edu/~dcr/ __