Bald Eagle Takes Flight on Independence Day. ©2011, James McGrew. While spending July 4th with my family at the Lake Grove Swim Park in Lake Oswego, I focused on an osprey on the top of this Douglas Fir. However, it took off when this bald eagle swooped into the tree. Onlookers kept approaching me and asking why I was laying on the ground with a long white lens aiming up into the sky. The Eagle was mostly hidden in the shade of the upper branches and undetected by most observers. Eventually the eagle took off again and soared out across the lake, giving me a brief opportunity to take this photograph.