They nest from April to July and excavate a tunnel about 30 cm (12 in) long in a clay or sand embankment with a terminal chamber, although sometimes they use a rotten trunk or tree cavity. They cover the walls of the tunnel and the egg chamber with a thick glue-like substance mixed with grass, lichen, algae, small feathers, and other materials. Three or four eggs are laid and they are incubated by both parents.
The above photo is probably the best that I have seen of a Cuban Tody as it's difficult to get a picture with an uncluttered background. It was taken recently by Marcos Verdecia Diaz. Well done Marcos.