Rufous-tailed Hummingbird

Overview

The rufous-tailed hummingbird (Amazilia tzacatl) is a medium-sized hummingbird (9–11 cm, ~5 g) and one of the most common and visible members of its family in Costa Rica. The diagnostic field mark is immediate: a chestnut-rufous tail that contrasts sharply with the metallic green back and head. The throat is green with fine white scaling. The bill is straight, pinkish at the base, and built for the open tubular flowers and feeders it favors.

Unlike the hermit hummingbirds, the rufous-tailed is a territory-holder rather than a trap-liner. Males aggressively defend patches of flowering shrubs and are not shy about it — chases, dive-bombing, and sharp chip calls are constant at a productive flower patch or feeder.

Why Tortuguero

This is the hummingbird most guests at Tortuguero lodges will see at close range. The species thrives at forest edges and in cleared or semi-open ground with flowering vegetation — the lodges’ own gardens, path edges, and canal banks lined with ornamental or naturalized plantings. It adapts faster than most hummingbirds to human-modified landscapes, which is why it is abundant where the park meets the inhabited corridor.

It remains a genuine wild bird: it forages in the forest edge, nests in garden trees, and moves between lodge grounds and the park’s secondary vegetation. The population estimate exceeds five million individuals, and unlike its hermit relatives, it actually benefits — at the local scale — from the moderate habitat modification that ecotourism facilities introduce.

How to see them (honestly)

• Easy. Any flowering ornamental or fruiting garden shrub around a Tortuguero lodge will have one within minutes of your arrival.
• Males chase each other constantly at contested flower patches — the action is noisy and unmissable.
• The rufous tail catches light even in motion; it’s the reliable field mark that ends all ID uncertainty.
• Nest-building females carry spider silk and plant fibers to cup nests in garden trees — watch for this in late dry season into the wet season onset.
• For a contrast: walk 50 metres into shaded forest understory and the rufous-tailed disappears, replaced by the hermit species. The habitat boundary is sharp.

Status note

Least Concern globally, with a population that likely exceeds five million and is assessed as slightly declining at the continental scale — but the trend is driven by habitat conversion on the broad range, not at the local level in Tortuguero. The species’ adaptability to disturbed and semi-open habitats makes it resilient compared to the forest-interior specialists it shares the park with. No conservation concern currently attaches to this species at any regional level.