Michael, You can download a free bird identity app from Cornell Lab of Ornithology which is very good. It usually shows you about 3 or 4 different pictures of the birds in question, along with maps and sounds. If you checked the Coopers Hawk it gives two different calls for the adults, and also the juvenile begging calls. Combine the longest adult call ending with the juvenile call and you've got it! Also one of the most enjoyable purchases that I have ever made was a bird listening mike outside attached to a small computer type speaker inside the house. Once I was hooked on this I never wanted to go back, and just ordered a new one from 'Nature's Window 3 Outdoor Sound. Just Google that name and you will be able to select the website. I would buy the hard wired version because there is less interference, and is very simple to operate. The tiny speaker is attached to about a four foot wire going to the speaker. Open your window and stick about four inches of the mike wire outside and bend it downward to help to protect the speaker from wet weather. Close the window on the small wire, plug the inside speaker into an outlet, adjust the sound, and you will never go back! The unit cost $124.99 plus $19.90 shipping, but will give you much pleasure I believe. The only drawbacks are some outside noises such as wind and power equipment, and you can always adjust the volume down or simply turn it off.