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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.
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. Q: Can you provide a short summary of your research goals and your conclusions?
Analysis : I have never seen a Kirtland’s Warbler, but this is consistent with the research I have done to fix that problem. Please note that it’s important to consider the time required for transportation and security procedures when planning your layover birding excursion.
Recently published research suggests that the situation is even more dire than previously predicted. Take public transportation when possible. As the planet warms, fragile habitats that countless animal species depend on for survival will be destroyed. Most scientists agree that a 3.6°F Most scientists agree that a 3.6°F
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