Rufous-breasted Hermit

Identification

The Rufous-breasted Hermit is a small hummingbird measuring 10.7 cm in length and weighing approximately 7 grams. It is distinguished by its brownish head, bronze-green upperparts, and distinctive rufous underparts. The tail features green central feathers with rufous outer feathers, all tipped white. The most notable feature is its long, strongly decurved bill measuring around 3.3 cm, with a black upper mandible and yellow lower mandible. Males display yellow streaking on the upper mandible and are somewhat more distinct than females, which may appear slightly duller and have a proportionally shorter, more decurved bill. The species produces a characteristic high-pitched sweet call.

Range & Habitat

The Rufous-breasted Hermit is a widespread and generally common species found from Panama south to Bolivia, and on the Caribbean islands of Trinidad, Tobago, and Grenada. Although it occupies a large geographic range across Central and South America, local populations may fluctuate in numbers and disappear entirely from marginal habitats. The species inhabits forest undergrowth, with a strong preference for areas near running water such as streams and waterfalls.

Behaviour & Diet

This hermit exhibits highly discriminating feeding habits, visiting only flowers whose corolla length and curvature precisely match its specialized bill shape. This selectivity extends across a remarkable diversity of flowering plants, particularly favoring Zingiberales such as Costus scaber and Heliconia species, alongside Gentianales, Lamiales, and Myrtales. The bird feeds exclusively on nectar and small invertebrates. The difference in bill curvature between males and females suggests the sexes may partition food resources by visiting different plants, reducing competitive overlap. The species appears to play a crucial pollination role for certain plants including Cuphea melvilla and Psychotria species.

Best Time & Places to See It

The Rufous-breasted Hermit can be found year-round in suitable habitat throughout its range, with breeding occurring all year in at least some regions such as Colombia. Look for this species in humid forest understory near streams, waterfalls, and roadside vegetation. The bird's preference for running water makes proximity to such features a reliable indicator of presence. Forest margins and disturbed areas within its range also provide opportunities for observation.

Photography Tips

The nests of this species are surprisingly easy to locate and are built one to two meters above ground, attached to the undersides of palm, fern, or Heliconia leaves, often positioned near streams or waterfalls. Females lay exactly two eggs and may nest up to four times in a season, providing extended opportunities for nest photography. The bird's aggressive and inquisitive nature means it may approach observers, offering potential for close-range photography. Position yourself near flowering plants within forest understory, particularly those in the preferred plant families, to capture feeding behavior. The small size of nests and eggs—each weighing only 0.3 grams—requires macro photography techniques for detailed documentation.