Oregon Thunderbird Sighting

This by way of Lon Strickler at Phantoms and Monsters. A snippet:

My dad told me a story. Him and my mom were fishing. This was the early 80s. We lived in Oregon. He didn't see a winged humanoid (the topic of the show that evening) but what he did see, what he described, was a Thunderbird. He said the bird was so big, it had a wing span of ten feet and when it kind of dove down toward the boat, the water around the boat began making waves from the wing's flap. (source: Phantoms and Monsters)

Lon's post also has more items on winged humanoid and birdlike creatures.