Snow days are good for cleaning up the inbox of bookmarks.
- Jeff Kelly shows how to build your own RFID data logger for $40 or less. It’s suitable for tracking birds at feeders, nest boxes, anywhere they hang out. The system works with any animal species large enough to carry an RFID tag; a battery at the logging station provides the power.
- A new paper by G. Bohrer et al. describes an “exclusion zone” approach to siting wind turbines in an urban environment, as Roberta Kwok explains. The approach manages the tradeoff between maximizing the power produced by an array of turbines and minimizing its adverse effects on wildlife.