Duval, E. H. 2000 Journal Isla Boca Brava, Chiriqui Prov., Panama April 2000 We spent the day doing observations at 9 display perches. There are many Swainsons Thrushes in the area, calling, fighting, and flitting part like manakins during observations. During my last watch at Acacia, a bird walked up to me (4 away) that looked like a Northern Waterthrush or Ovenbird, but didn't have the center orange crown of an ovenbird, and had distinct black stripes (3-4) on the top of the head, unlike N. or Louisiana waterthrush. Legs were pink and long, breast was white (not buff) and spotted with nearly circular pattern. Throat white, back & head brown (except for the stripes) Notes on nests: Stiles & Skutch A Guide to the Birds of Costa Rica lists the incubation time of manakins as 18-21 days, and with an additional 13-20 days in the nest for the young.