Two for the price of one. I was following that indigo bunting from tree to tree, trying to get a good shot of it, at the top of Popolopen Torne in Rockland County, NY. For a brief moment it settled into a tree next to the yellow bird in the photo. I was focusing on the bunting, so the yellow bird is a little blurry. My apologies for this. It wasn't until I got home to look at the photos that I realized I couldn't identify the yellow bird. Could it be a yellow warbler or a female goldfinch? Thanks for your thoughts.