I heard, then saw, my first robin of spring yesterday.
Perched in the Norway Maple, singing it's little heart out. Mating call? Or just staking out territory?
Wikipedia has a nice page on the robin, including a clip of robin song. I had heard about the robin being a vector carrier for West Nile virus, but didn't know that it is the "state bird of Connecticut, Michigan and Wisconsin".
Not sure why Emily Dickinson wrote "I Dreaded That First Robin So": reading the poem didn't enlighten me.