When 2 p.m. rolls around at the office, it’s primetime for a pick-me-up. Some of us reach for a second cup of coffee; others succumb to a sugary treat. But what if there was another way—a better way—to recharge our brains during the 9-to-5 slog? There are always the birds outside your window. That’s right, whether you’re in a billion-dollar high-rise or a suburban stripmall, just outside your office window is a world like no other, where Red-tailed Hawks dive-bomb pigeons, American Kestrels battle Common Ravens, and hummingbirds flash by. For some, the excitement is almost too much. “It’s a distraction,” says Nathaniel Miller, director of conservation at 蜜柚APP Great Lakes, which is located in a large building on the Chicago waterfront. “We have to close the blinds during important meetings so people pay attention.” For others, maintaining the appearance of working is part of the thrill. “Office birding is more fun when it’s illicit, when you...