Join PRBO Conservation Science for our 34th Annual Bird-A-Thon! Anyone can participate between September 1 - October 15, 2011 by going birding for up to 24 consecutive hours and identifying as many species as possible. Ask friends, family and colleagues to support your Bird-A-Thon, and to share the request with their contacts. Over the past 33 years this event has raised more than $2.3 million for PRBO's award winning conservation research and education outreach.