Jerry

I live in Mechanicsburg PA.  Since enrolling in the Joy of Birdwatching course, I have notice a significant drop in Northern Mockingbird sightings.  I would see them daily in my back yard as well as when riding my bike through the local parks and adjoining neighborhoods. In fact, I haven’t seen any mockingbirds for at least two months.  They are supposed to be year long residents here. Anybody else notice this?