The Philadelphia Vireo Surrenders!

On Saturday morning, I went into the park nearly hopeless in my search for a Philadelphia Vireo. But I still didn't let a slight chance slip by me. I went to Maintenance Meadow, which seemed to be the most reliable spot for them. I spot a vireo, and it's a Red-Eyed. Good start for a comparison. Then, I spot another vireo that was smaller, grayer and yellower. A look at the yellow underside confirmed my suspicions of it being a PHILADELPHIA VIREO (#155)! This bird was probably the same one that was seen over the previous few days. Other than this, it was pretty quiet that day. With my last regular migrant out of the way, it's all up to rare migrants, wandering birds, and vagrants to push my year list past 158 species.