Cornell University's Great Backyard Bird Count is happening now! They collect data on bird species and their whereabouts from all over the country at this time each year, and you can help. It's easy to participate - just look out your window for 15 minutes each day, today through Monday, and fill out a form on their website noting what species you saw and how many. Here are some notes from their FAQ: How is the information from the GBBC used? Bird populations are constantly changing. No single scientist or team of scientists could hope to keep track of the complicated patterns of movement of so many species over an entire continent. The information from GBBC participants becomes even more valuable as scientists try to learn how birds are affected by environmental changes. The information you send in can provide the first sign that individual species may be increasing or declining from year to year. It shows how a species’ range expands or shrinks over time. A big change,...