Жағалы аракари: Сипаттамасы мен ерекшеліктері

Species of bird

The collared aracari or collared araçari (Pteroglossus torquatus) is a near passerine bird in the toucan family Ramphastidae. It is found from Mexico to Colombia and Venezuela.

Like other toucans, the collared aracari is brightly marked and has a large bill. Adults are long and weigh Males and females have the same coloration of the bill and plumage but the female's bill is shorter than the male's. The three subspecies' bills are alike. The adult's bill has a narrow vertical white line at its base. Its maxilla is buffy white darkening to dull reddish brown at its base. Its tip and culmen are black. The maxilla has black and yellowish white notches. The bill's mandible is black. Adults of the nominate subspecies have mostly glossy black upperparts with a narrow cinnamon rufous collar at the base of the nape and bright red lower back, rump, and uppertail coverts. Their head, throat, and uppermost breast are greenish black. Their lower breast, belly, and undertail coverts are yellow. The breast has a variable red wash and a black spot in its center; the upper belly is crossed by a narrow red and black band. Their thighs are cinnamon to rufous. Juvenile collared aracaris are much duller than adults, with a sooty black head and chest and brownish olive upperparts. The red rump and yellow underparts are paler, and the breast spot, belly band, and bill pattern are indistinct. Subspecies P. t. erythrozonus is similar to the nominate but smaller and has a much smaller breast spot or none at all. P. t. nuchalis is also similar to the nominate, but its breast spot is usually larger and the white basal line on the bill is wider. The most common call is described as "a high, sharp, squeaky, note, such as seek, pseek, pink or penk, or a two parted pi cheet or squi zeek." They also make a "purr" and an "“aggressive, rasping grhhrr". A rattle call "bddddddt" may actually be non vocal. Collared aracari's wings make an audible whir during flight.

Collared aracaris typically travel in groups of about six to 15 individuals that sometimes include other toucan species. They also roost communally; up to seven may occupy a cavity overnight.

The collared aracari's diet is mostly fruit but it also feeds on large insects, the eggs and nestlings of other birds, and other small vertebrates. It mostly forages from the forest's mid level to the canopy but will feed on fruits in the understory. They glean fruit by stretching from a perch, bending, and even hanging upside down. They regurgitate large fruit seeds which often remain viable.

The collared aracari's breeding season is from January to May in most of its range. It nests in tree cavities, usually those excavated by large woodpeckers but also natural ones. They may enlarge the cavity, which can be up to above the ground. The clutch size is usually three eggs but can be as large as five. The incubation period is 16 to 17 days and both parents incubate. Fledging occurs 26 to 30 days after hatch. The parents and often up to three other adults provision the nestlings. They are fed mostly with insects when young.

The IUCN has assessed the collared aracari as being of Least Concern. It has an extremely large range but an unknown population size that is believed to be decreasing. No immediate threats have been identified. "[A]lthough it tolerates secondary forest, it nonetheless is very susceptible to deforestation" and is hunted by indigenous peoples.