One of the episodes presented tonight on the Discovery Channel's Life series was "Birds." Excellent footage on Red Knots was included. I could not find it excerpted on YouTube. Perhaps some enterprising soul will post one eventually. The content was quite good. If you can tolerate Whinfrey's lame narration, watch for it on re-runs.
I watched that Gayle...wow...10,000 miles from Argentina to Canada (upper) with 1 stop in Delaware for food. The farthest migration for a bird. It was amazing how they timed it by the moon and the Horseshoe crabs egg laying. Very impressive. I found a clip but it said "not available in your area"...oh well, I'll keep searching.