ML453642641

觀察細節

All booking it west without lingering around the rapids (3 @16:51, 3 @17:05, 2 @17:54, 1 @18:58). Field marks that really stood out at a distance - small headed, “neckless” appearance; long tail streamers, stubby bill, darker grey underparts, limited black on primaries. Light, buoyant flight