Birders keep all kinds of records about the birds they see. The full list of all the bird species they have seen is called their life list. When they see a new species, they often say they have a “lifer.” Over the last couple of weeks, I made three trips to Two Harbors, Minnesota, trying to see a Eurasian Tree Sparrow which would be a lifer for me. Each time I spent several hours watching for the bird, and on the third try, I finally saw it. However, I didn’t get a photo because a school bus scared it away. A Eurasian Tree Sparrow looks a lot like this very common bird, a House Sparrow, which I also saw in Two Harbors. The difference is the Eurasian Tree Sparrow has a full rusty cap and a black spot on its cheek.