Birds

Keel-billed toucan

Lê Tuân12 năm ago5 năm ago03 mins

Ramphastos sulfuratus

(Photo from Online Utility)

Common name:

keel-billed toucan (en); tucano-arco-íris (pt); toucan à carène (fr); tucán pico iris (es); fischertukan (de)

Taxonomy:

Order Piciformes

Family Ramphastidae

Range:

This species is found in Central America, from southern Mexico to northern Colombia and north-western Venezuela.

Size:

These birds are 42-55 cm long. The males weigh 360-550 g, while the smaller females weigh 275-480 g.

Habitat:

The keel-billed toucan is mostly found in lowland rainforests, but also in some rainforests at higher altitudes, mangroves, tropical dry forests and second growths. They can also be found is pastures and plantations. This species is present from sea level up to an altitude of 1.600 m.

Diet:

They mainly feed on the fruits and seeds of various tropical trees, namely Cercropia, Inga, Protium, Ficus, Rheedia, Alchornea costaricensis, Didymopanax morototoni, Astrocaryum polystachyum, Iriartea exorrhiza, Virola panamensis, Cupania seemanni, Cnestidium rufescens, Salacia, Swartzia cubensis and Ehretia tinifolia. They also take snakes, small lizards, insects such as beetles, cicadas and ants, and the eggs and nestlings of passerine birds.

Breeding:
Keel-billed toucans breed in March-June. The nest is a natural tree cavity or an old woodpecker nest, lined with wood chips and green leaves. The nest is about 7 m above the ground. The female lays 1-4 dull white eggs with irregular pitted grooves extending lengthwise along the egg. The eggs are incubated by both parents for 16-20 days. The chicks are fed by both parents and fledge 45-60 days after hatching. They reach sexual maturity at 2-3 years of age.

Conservation:
IUCN status – LC (Least Concern)
This species has a large breeding range and the global population is estimated at 50.000-500.000 individuals. The population is suspected to be in decline locally owing to taking of young as pets and unsustainable levels of hunting, but the keel-billed toucan is not considered threatened at present.