[Maine-birds] Help with UNID Song from Upstate NY

Good morning All

We were recently at a campsite in Waterloo, NY just outside of Seneca Falls.

Despite the rainy, dreary weather, this guy was singling all day long. You'll hear the song 8 times in this edited recording.

I looked long and hard but never saw the bird. Merlin vacillates between a Warbling Vireo and a Baltimore Oriole. 

Doesn't sound like the vireo to me but does have the same tonal quality as the Orioles I hear in Maine but not a song I've heard here.

Anyone familiar with the song and able to ID?

Thanks for the help.

—mco