A yellow bird with black markings (and white wing bar) sung from bare 
branches numerous times yesterday -- in the trees along my townhouse 
backyard.   According to the pictures in Peterson's Field Guide, it 
appears to be a Lawrence's Warbler, not a common yellow throat, or any 
of the other warblers.   I haven't found its vocalization on the web to 
compare to what I heard.  

I also saw and heard the yellow-billed cuckoo (and heard several 
different warblers that I could not see or identify.)  (I'll read the 
web links about Lawrence's this evening.)

Thanks for any comments about the possible sighting of  Lawrence's Warbler.

Burtonsville, MD (south of 198, east of 29)
Fran Curnow