"Uncommon in wet marshes" according to the Sibley Field Guide to Birds of Eastern North America, wt: 2.6 oz, length: 8.75".
"A skulky little bugger, really easy to hear, damned hard to see" per Gunnar's Guide to Seldom Seen Birds.
See it? We watched it taking a bath in the sunshine, posing for as many pictures as we wanted to take. I do not know what goes on in their birdie little heads, but birds do seem to find real joy in splashing about in water and then preening in the sunshine.