What About The New Sparrow On The Block?

 I searched the edge area along a stream at Frederick White Farm in Durham last weekend.

There was a few sparrows around including the newly arriving tree sparrows which seem to sort of take the place of the Chipping Sparrows.

I wonder if the other sparrows that have been here all year notice when a different species shows up? Do they interact differently to the new arrival than they do to their own?

Too often I get in the routine of identifying a bird and then moving on. I'm going to try to observe the interaction between different species a little more than I have in the past.