Maquenque ranks up there with Tortuguero on seeing and photographing the Green Ibis, though this time I was not able to get a close as before plus the cloudy/rainy weather mad them look darker or nearly black, but they are always dark as you can see in my gallery: Green Ibis (linked). Just 2 shots here with more in the gallery. And though they all have a green tint, it is difficult to get that green to show up in a photo.
¡Pura Vida!