Has been there about a week. Rare vagrant. Plumage looks perfect & bird appears healthy. Big crowds watch it & photograph it, especially since the Wash Post wrote about it & the Swiss ambassador photographed it! Occasionally it sits on & eats the invasive Asian beefsteak plant pictured in this photograph, which smells like peppermint even when it's dried out. Still there on January 10, 2021.

Mushroom with a dry creamy-tan cap with purple hints and purple gills. Cap lightly fibrous, 3.5 cm in diameter and 3 cm in height. Gills attached with a slight decurrent tooth. Stipe pale purple near apex and tan towards base. On soil in remnant mature coastal broadleaf forest.

El individuo se presenta a plena luz del día y recorre tranquilamente las ramas del yarumo para alimentarse. Tarda unos 20 mintuos en recorrer cada una de las ramas y descender. Siempre lo veo en el mismo árbol.

Pude observarlo a plena luz recorrer cada una de las ramas del mismo yarumo (Cecropia angustifolia) donde lo vimos la semana pasada alimentándose. También pude observarlo usar su cola prensil para asegurarse en el árbol.
Aquí el video que registré del avistamiento: https://youtu.be/Acf82Zx1wIM

9/19/20: Updated the precision, which was previously 4 km and mapping to Virginia. This was along Billy Goat Trail in MD. I don't recall anything else about this sighting, but from the photos I suspect it was moving quickly, and so was my hiking group (hence the blurry photos).