Мыс қоңырқайлы колибри: Сипаттама және өмір салты

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The copper rumped hummingbird (Saucerottia tobaci) is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is found in Tobago, Trinidad, Venezuela, and possibly Grenada.

The island subspecies of copper rumped hummingbird are sedentary; the mainland ones make some local movements.

The copper rumped hummingbird forages for nectar from at least 40 species of trees, vines, herbs, and other plants including introduced species. It is extremely territorial and vigorously defends feeding areas from other birds, even larger ones. In addition to nectar it feeds on small insects by hawking from a perch or by gleaning from vegetation.

The copper rumped hummingbird's breeding season on Trinidad is almost year round, excluding only September and October; its peak is from January to March. On Tobago it spans at least from November to June. The breeding seasons of mainland subspecies are essentially unknown. The species builds a nest of silky plant down with lichen on the outside. It places it like a saddle in a fork or on a small branch, usually between above the ground but occasionally as high as Nests have also been found on wires and clotheslines. The female incubates the clutch of two eggs for 16 to 19 days and fledging occurs 19 to 23 days after hatch. Up to three broods may be produced each season.

The copper rumped hummingbird's song is "a repeated phrase of three buzzy or squeaky, well spaced notes 'tee dee dew' or 'tee dzee djit'." It also makes "high pitched descending rattles" when foraging.

The IUCN has assessed the copper rumped hummingbird as being of Least Concern, though its population size and trend are unknown. It has a large range and no immediate threats have been identified. Those on Trinidad and Tobago and the mainland subspecies S. t. feliciae and S. t. caudata are considered common to very common. The other subspecies appear to be more scattered, though this might be due to incomplete data.