Oh, man! I was going to use this for my logo, but it just didn't seem right. I'm sooooooooo very glad I asked.
Thank you so, so much for your time. I really didn't know where to ask. Most sites require identification for only real birds.
Your effort allows me to let this one go, even though I love it, and find an appropriate illustration for my logo. It's very hard though as many, many artists identify their art as sparrow (as did this one). Sometimes they list several bird species. I think I'm going to have to go very abstract as I just don't know my birds well enough. I'm starting a website with the word sparrow in it and so it must be a sparrow. I'm a new bird lover by the way, thus my choice.
I hate to press my luck, but do you think the below abstract images could be a sparrow?