Half-asleep, I shuffled to the canopy-level observation deck of my rustic wooden cabin, grabbing binoculars and Tito Narosky's "Birds of Argentina and Uruguay" just as a flurry of yellow plumage transformed into what locals term the "banana toucan, " a rare and striking saffron toucanet.

WSJ: Bird Watching in Misiones Province, Argentina

Floor-to-ceiling folding-glass doors in the upper-level living room open onto a wood deck that is equipped with an outdoor kitchen, furniture, another television, patio heaters and, of course, more Haring-inspired murals.

WSJ: On the Edge With Haring-Inspired Duplex