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The Surucua trogon (Trogon surrucura) is a species of bird in the family Trogonidae, the quetzals and trogons. It is found in Argentina, Brazil, Paraguay, and Uruguay.
The nominate subspecies of Surucua trogon is found from eastern Paraguay and northeastern Argentina east into Uruguay and in Brazil as far north as southeastern Tocantins. T. s. aurantius has a more restricted range in east central and eastern Brazil from Bahia south to São Paulo state. They inhabit the mid levels of primary and well-developed secondary forest and semideciduous woodland. T. s. aurantius often associates with bamboo. T. s. surrucura occurs as high as 1,150 m (3,800 ft) in Bahia, 1,550 m (5,100 ft) in Minas Gerais, and higher still in Rio de Janeiro state. T. s. aurantius occurs up to about 2,000 m (6,600 ft).
The green-headed tanager (Tangara seledon) is a brightly colored bird found in the Atlantic forest in south-eastern Brazil, far eastern Paraguay, and far north-eastern Argentina (Misiones only).
As other members of the genus Tangara, it is a small colorful bird, measuring an average of 13.5 centimeters (5.3 in) and a mass of 18g (0.6 oz). The green-headed Tanager has a greenish or bluish head, black on the back, and a contrastingly colored, orange or red rump. Females and juvenile birds have similar, though duller coloration. While essentially a bird of humid forests, it is also common in orchards and parks, where it moves through the canopy, making itself inconspicuous, as its apparently flashy blue-green coloration camouflages it well amongst the foliage.
Danaus erippus, the southern monarch, is a milkweed butterfly (subfamily Danainae) in the family Nymphalidae. It is one of the best known butterflies in South America. Its genome is nearly identical to D. plexippus, but the two are incompatible, and therefore considered separate species.
Though, not as well known as the eastern North American monarch migratory phenomenon, it has been observed to move in a consistent spring/autumn manner by flying south in the autumn towards colder latitudes for the winter.Massive overwintering roosts have not yet been found.
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The plush-crested jay (Cyanocorax chrysops) is a jay of the family Corvidae (which includes the crows and their many allies). It is found in central-southern South America: in southwestern Brazil, Bolivia, Paraguay, Uruguay, and northeastern Argentina, including southern regions of the Amazon Basin river systems bordering the Pantanal.
It is an elegant medium-sized bird, dark plumaged with a cream-yellow breast; the bulky tail is also cream colored, top and underneath, for the lower half.
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The range of the plush-crested jay extends from the Southern Region, Brazil with Uruguay and approaches the South Atlantic coast, but avoids the coast, approximating a 400 to 150 km coastal strip; the coastal-inland range extends 3500 km from São Paulo south to Rio Grande do Sul bordering Uruguay. The inland range continues in northwestern Uruguay and extends northwest through northern Argentina, Paraguay–Bolivia, and through the Pantanal at the southern Cerrado; the range extends in two arms, to the northwest to northern Bolivia, and northeastwards to headwaters of the Amazon Basin Tapajós River.
In the Amazon Basin, central Bolivia is the northwest range limit, the headwater tributaries to the north-northeast flowing Madeira River; the next range skips the Guaporé River, (a northwest-flowing tributary to the Madeira), eastwards on the Brazil–Bolivia border, and is next found at the headwaters of the Tapajós River, and joins on the east the extreme headwaters of the Xingu River.
A disjunct range occurs downstream on the Tapajós and east towards the Xingu River, a block 850 by 750 kilometres (530 mi × 470 mi). Two other localized populations occur in the Amazon Basin, one on the Amazon River, the other on the downstream Madeira River.
The guira cuckoo (Guira guira) is a gregarious bird found widely in open and semi-open habitats of northeastern, eastern and southern Brazil, Uruguay, Paraguay, Bolivia, and northeastern Argentina. It is the only species placed in the genus Guira.
The guira cuckoo is a bird of open habitats such as pastures and wetlands, and its range has expanded significantly due to deforestation. Within its distribution, it is commonly seen in suburban parks and gardens.
Like the related squirrel cuckoo, the guira cuckoo is not a particularly adept flier, and usually flies only for short distances. It is often seen gliding or hopping from one perch to another while vocalizating loudly.
Although it is primarily an arboreal bird, it is often seen foraging on the ground, sometimes alone but often in flocks of up to 18 individuals. It is sometimes seen with other birds whose behaviour is similar, such as the smooth-billed ani. Unlike many of the Old World cuckoos, the guira cuckoo does not practice brood parasitism or kleptoparasitism.
A small, plump, mainly green bird. The underparts are yellow, and the mantle/lower nape, rump and eye-ring are blue. Some subspecies have a yellow frontlet. Females are duller than the males, with underparts more greenish-yellow and less blue to the mantle/lower nape.
Its distribution is highly disjunct, with population associated with the Atlantic Forest in south-eastern Brazil, eastern Paraguay and north-eastern Argentina, the Andes from Bolivia in south to Venezuela in north, the Perijá and Santa Marta Mountains, the Venezuelan Coastal Range, and the Tepuis. All populations are associated with humid forest, but locally it also occurs in nearby gardens and parks (especially in the Atlantic Forest region). Most populations are found in subtropical highlands, but it occurs down to near sea level in the Atlantic Forest region.
