Talked to a retired ornithologist at the diner and he changed how I watch sparrows
I was eating breakfast at this place off Route 9 around 6am and this older guy sees me looking out the window at the parking lot birds. He asks what I'm looking at and I say just some house sparrows. He goes "those aren't house sparrows, those are song sparrows. Look at the dark spot on the chest." Then he spent 15 minutes pointing out little differences I never noticed. Streak patterns, tail shape, even the way they hop. Made me feel like I've been half-blind for years. Has anyone else had a random encounter like that where one person just flips your whole view of something simple?