[Update Mar8, 2013: more photos here]
Some times working for an environmental group comes with added bonuses. A pair of peregrine falcons is nesting just outside our window on Sutter St. in downtown San Francisco, providing an amazing daily spectacle! They fly between our building and the clock tower opposite on Market St., and regularly bring back rodents and birds to feast on in an impressive display of raw nature in the heart of an urban environment. This is likely a different pair to the one that lives near the Embarcadero.
Here are a couple of photos I took today: