Experience Oregon Research Transported 
10,000 Birds
APRIL 12, 2022
So armed with some knowledge from the “ Access Considerations for Birding Locations ” page on the Birdability website and some research, I twice visited the Tualatin River National Wildlife Refuge near Portland, Oregon with accessibility in mind. A 5% grade is steeper than I thought, but research suggests that 5% is acceptable.
10,000 Birds
OCTOBER 23, 2017
How much do birders value a birding experience? The economic “impact” of a birding festival can be estimated by looking at expenditures of attendees ( e.g., hotel rooms, meals, souvenirs, transportation costs, etc.). I emailed the authors and asked about their research and their use of eBird data.
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