At about noon, I id'd a Louisiana Waterthrush at the Old Cedar Ave bridge, west of the Parking Lot just west of the first pond, south of the trail (before the first boardwalk). I have never seen more Northern Waterthrushes in one place. They were chasing each other and flycatching from dead sticks in the pond. The Louisiana was keeping to itself on the other side of the trail, near the third "channel", close to the trail. Note in Sibley how the flank streaks "blur out" on Louisiana Waterthrush, whereas what rear flank streaks there are on Northern stay crisp, giving a Northern a white-flanked look, even at a distance. I have never put much stock in the length/width of the eyestripe since I think it can vary a lot. The Louisiana did have a big bright one that continued well back of the eye..on some of the Northerns the eye streak was thin overall and almost seemed to vanish past the eye. Oh well, just some musings...this is only the second Louisiana Waterthrush I have ever seen in this area (thouigh, when I lived in New York, they were overwhelmingly the majority of the Waterthrushs that came through Central Park in the spring.
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