Still, 17 March 2014 near Bosque del Paz in Costa Rica. Not only hummingbirds, but also other birds, like this black phoebe. See also here on that species.
They behave somewhat dipper-like on rocks in mountain streams. But they are an American flycatcher species, unrelated to dippers.
A golden-browed chlorophonia.
On the other side of the stream, a chestnut-capped brushfinch.
In a big tree, a big bird, living only in Costa Rica and Panama: a black guan.
In a smaller tree, a much smaller bird with a much bigger geographical range: a rufous-collared sparrow.
A collared trogon.
Then, time to switch from telephoto lens to macro lens. From birds to moths which had gathered on the building.
There are thousands of Costa Rican moth species, and I am far from an expert in these species. So, I know there were various moth species, but not which species.
The largest specimens belonged to the hawk moth family.
Finally, a Central American agouti with a baby on the other river bank.