The Mockingbird way back 70-80 years ago was a real southern US species. The first one ever registered on a Long Island Christmas Bird Count in Nassau County was in 1953.
Think about that.
There may have been summertime visitors before '53, but that first one on the count was something special. They grew in numbers through the 50's and 60's so by the early 70's, they were in every single neighborhood.
But as of the moment, they are rare in SE Michigan.
As a side note, in Florida, the three most common birds seen in neighborhoods are Mockingbirds, Mourning Doves and Loggerhead Shrikes! Talk about an oddity! Now I mentioned perching birds first. Another species just as common, just as numerous was the White Ibis! It has gotten even a little more weird, hasn't it?!
I mean Mockers, M Doves, Shrikes and W Ibis being the 4 most common backyard birds in SW Florida!! Incredible.
I have to stop. We have taken this thread off of the rails. I am sorry. But my leading culprit remains squirrels!!