Scheduling: Surveys will be held at dusk, 4-8 nights per month (June through September), and possibly clustered on weekends. Does this fit with your availability? How frequently would you be interested in joining surveys? (As this is a new type of volunteer opportunity, we are asking this to learn, for example, whether there are 2 people who'd like to come out every night possible, or 20 people who only want to come out once!)