I left the maintenance yard for a few minutes, before
Wallace's departure.  At the same time, a field trip
led by Paul DeAnna arrived, and seemingly brought
birds from the ridge with them.  We had a few species
of warblers, at least three Rose-breasted Grosbeaks, a
Baltimore Oriole, a male Eastern Bluebird, and last
but not least, an adult male Mourning Warbler. 
Probably 30+ Broadwinged Hawks circled or sailed
overhead, seemingly to the ire of the resident
Red-shouldered Hawks.  Most of the passerines were
feeding in the porcelain berry vines.  

Cheers, 

Rob Hilton
Silver Spring


       
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