I am just learning about birds since I am very near a bald eagle nest on the CT
River. I have seen a medium size bird with a robin type beak that it all black
except for a very clearly delineated white rectangle on its throat. I have seen it
very clearly twice as it flew over my kayak on two occasions this summer. Its
call is a sort of repetitive non musical sound that repeats about twelve times and
then stops then starts again.
I have looked in many books and ipad aps. What is it?