Recording of Gray Catbird fledgling begging calls

I recorded the Gray Catbird fledgling that I have heard a number of times giving the begging call (ie, parents, please feed me). It took me awhile to figure that this was actually the Gray Catbird fledgling calling and not an American Robin or other bird but I watched it as it gave this call on several occasions. Today it was back in my yard and giving it's begging call repeatedly and I got the following recording. SeEtta