I recently downloaded the Merlin app from Cornell to assist with bird identification. The most useful attribute so far is the ability to record live birdsong and have it be identified. I admit to being kind of addicted. You see an example of a report here and the accompanying recording. We found our eagle pair recently along the river but I did not have my camera with me that day so I pulled out the phone to record when they started calling. So here are some other recent photos of that eagle pair along the river and a recording in case you love eagle calls as much as I do. (the audio file is at the bottom though the picture of the report looks like where you want to go)
Good Morning Gloucester 