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Big Days have long held an allure for birders wishing to challenge themselves in tests of skill, expertise, and endurance. Finding and identifying a large number of species in a single day within a state or a county requires keen knowledge of the region's bird life across time and space. Drawing together knowledge on seasonality, behavior, biogeography, habitat, and the idiosyncrasies of particular locations to design a route that can maximize the number of species encountered in 24 hours is a formidable task of logistical planning.

Oregon has a rich history of big days. A number of teams have surpassed 200 species in statewide big days, and birders have put forth solid efforts in most of Oregon's 36 counties. Birders have also devised variations on the big day theme, including big sits, regional birdathon trips, 48-hour adventures, and - in response to climate change -motorless big days that minimize the use of fossil fuels.

This website serves as a central repository for information on big day efforts in Oregon. To begin your exploration of Oregon birders' accomplishments, click on the links to delve into information on Statewide big days, County big days, and Specialty big days.

And if you have run a big day in Oregon and wish to submit information to be included on this site, please send us an email.







Oregon Big Days
A compilation of information on Big Day efforts conducted in the state of Oregon