How is the distinctive, high-pitched song of the male Blackburnian Warbler often described?

Answer

A rapid, buzzy cascade that ends with a very high, thin final note

The male's song is characterized by its speed and texture, sometimes transcribed as sounding like *tseet-tseet-tsee-tsee-tsee-tseeeeee*.

How is the distinctive, high-pitched song of the male Blackburnian Warbler often described?
speciesbirdornithologyanimalwarbler