When you picture a birder, what comes to mind? If you’ve seen the 2011 caper The Big Year, you might imagine an older white man (Steve Martin, is that you?), obsessively focused on growing his life list, ticking off species in far-flung destinations all over the world. Your mental birder might be toting a pair of binoculars, carrying a camera with a lens longer than he is tall, and is probably wearing a tactical vest.