A mico is a white-faced monkey, and they are easily spotted in the trees around Laguna de los Micos, as well as 250 species of birds. Garífuna Tours [1] runs laid-back day trips to the lagoon that focus on bird-watching, for US$34 per person (not including lunch), and nature enthusiasts can keep their eyes peeled for kingfishers and spotted-breasted orioles, among others, as well as the white-faced monkeys and several species of butterflies.
It’s just as easy to visit Laguna de los Micos independently by asking at the restaurant in Miami [2] to arrange a boat tour.
Links:
[1] http://www.moon.com/destinations/honduras/the-north-coast/tela/tour-operators
[2] http://www.moon.com/destinations/honduras/the-north-coast/tela/west-tela/miami