seasonal confusion

Yesterday, while the baby and I were walking in the neighborhood together, we heard and saw this

This winter has been so strange for us. We have far less snow (average snowfall per winter is 500 inches, this year we've had 213 inches), far more sunny days than last year, much warmer temperatures, and the snow we have had took until January to get around to falling. It appears we humans are not the only ones confused. I usually don't hear that kind of birdsong racket until April.

Is is spring already?