At 4 pm Sunday an Olive-sided Flycatcher was calling very repetitively its "Quick three beers" from about 30 feet up in an oak tree with bare branches. The location was in Montgomery Co near the corner of MD-198 and Good Hope Road, by the parking lot of the Spencerville Seventh-Day Adventist school.  I watched the bird for about 5 minutes. I thought it might be a bit early for Olive-sided Flycatchers, but the "Yellow Book" shows it possible in late April.

Cliff Comeau
Beltsville/Calverton