If you have ever wondered what you saw, a Coopers or a Sharpie, this will definitely help you identify it, it's the best I have seen.
(I didn't see that this has been posted here, so 'oops' if it has... ) 
A tip: I saved this page from my Firefox browser by right-clicking and using, "Save Page As", it will put the contents in a folder, but, the HTML Index page will be outside of the folder. What you will need to do on your Desktop (or where you saved it) is to make a NEW folder, name it what you want, then place the folder that you saved from the web in there. If you place the HTML inside of the first folder you cannot get the 'stuff' to work like it does online.
Note on the web page, this is interactive, if you place your cursor over the descriptions below the images you can see that it highlights that to a blue color. If you click it, you will see that it shows you comparison images so that you can 'see' what you need.
This is why I saved it rather than just Bookmarked the page, if this page is updated or, whatever, the link 'may' change, then it'll be lost, so I saved it to a folder on my computer.
Of course, do this for personal use only, it's not mine, but I don't plan on using it for anything other than checking identification.
http://feederwatch.org …k-and-sharp-shinned-hawk/![]()
Randy


