The greater round-eared bat is a bat species found in northeastern and southern Brazil, northern Argentina, Paraguay and Bolivia. The species feeds on fruit as well as hunting small birds. Once caught, birds are taken to a shelter and consumed.
The fork-tailed flycatcher is a passerine bird of the tyrant flycatcher family and is a member of a genus typically referred to as kingbirds. Named for their distinguishably long, forked tail, fork-tailed flycatchers are seen in lightly forested or grassland areas, from southern Mexico to south past Argentina. They are most frequently observed sitting on conspicuous perches waiting for flying arthropods to fly past, they then sally out, eat their prey, and return to their perches. Northern populations near southern Mexico tend to be permanent residents, while fork-tailed flycatchers that live further south are migrants with a reputation for wandering to as far north as New Brunswick, Canada.
Chiasmocleis hudsoni, also known as Hudson's humming frog, is a species of frog in the family Microhylidae. It is found in French Guiana, Suriname, Guyana, Guianan Venezuela, Colombia (Amazonas), and Amazonian Brazil. Chiasmocleis jimi has been included in this species but the most recent genetic analyses support its recognition as a distinct species; both species might include further distinct lineages that warrant recognition as species.
The austral canastero is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Argentina and Chile.
Hudson's canastero is a Near Threatened species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in grasslands in Argentina, Brazil, and Uruguay.
The spectacled tyrant is a species of bird in the tyrant flycatcher family Tyrannidae. It is the only species placed in the genus Hymenops.
The white-winged black tyrant is a species of bird in the family Tyrannidae. It has often included the Sao Francisco black tyrant as a subspecies. It is found in Argentina, Bolivia, Chile, Paraguay, Peru, and Uruguay. Its natural habitats are subtropical or tropical moist montane forests, subtropical or tropical moist shrubland, and heavily degraded former forest.
The blue-billed black tyrant is a species of bird in the family Tyrannidae. It is found in Argentina, Bolivia, Brazil, Paraguay, and Uruguay. Its natural habitats are temperate forests, subtropical or tropical moist montane forests, subtropical or tropical high-altitude shrubland, and heavily degraded former forest.
The São Francisco black tyrant, also known as Caatinga black tyrant or Brazilian black tyrant, is a species of bird in the family Tyrannidae.
The velvety black tyrant is a species of bird in the family Tyrannidae. It is endemic to Brazil, where its natural habitats are temperate forests, subtropical or tropical moist montane forests, and subtropical or tropical high-altitude shrubland.
The riverside tyrant is a species of bird in the family Tyrannidae. It is found in Brazil, Colombia, Ecuador, Peru, and Venezuela. Its natural habitat is subtropical or tropical moist shrubland.
The Amazonian black-tyrant is a species of flycatcher located in the Amazon wetlands. It is a medium-sized bird characterized by its physical features and habitat preference.
The rufous-tailed tyrant is a species of bird in the family Tyrannidae. It is found in Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru, and Venezuela. Its natural habitats are subtropical or tropical moist montane forests, subtropical or tropical high-altitude shrubland, and heavily degraded former forest.
Jelski's black tyrant is a species of bird in the family Tyrannidae. It is found from southern Ecuador to northwestern Argentina. Its natural habitat is subtropical or tropical moist montane forests. This and the plumbeous tyrant are sometimes considered conspecific, in which case, the bird is then usually referred to as the Andean tyrant.
The cinereous tyrant is a species of bird in the family Tyrannidae. The term cinereous describes its colouration. It inhabits the Gran Chaco, where Its natural habitat is subtropical or tropical dry shrubland.
Hudson's Oldfield mouse is a species of rodent in the family Cricetidae. It is known only from the Andes in southern Ecuador, where it has been found at an elevation of 3100 m. It was formerly considered a subspecies of T. gracilis. It is named after American zoologist Wilfred Hudson Osgood.
Emblemaria hudsoni is a species of chaenopsid blenny found around Peru, in the southeast Pacific ocean. It can reach a maximum length of 7.4 centimetres (2.9 in) TL. The specific name honours the Captain Charles Bradford Hudson (1865-1939) of the District of Columbia National Guard, who was an illustrator and who painted many species of American fishes.
Hudson's triplefin is a species of triplefin blenny in the genus Helcogramma. It was described by David Starr Jordan and Alvin Seale in 1906, the specific name honouring the illustrator of their monograph on Samoan fishes, R.L. Hudson. This species is found in the western Pacific Ocean where it has been recorded from the Izu Islands, Ryukyu Islands, Savo Island, New Caledonia, Vanuatu, Fiji, and Samoa.
The plumbeous tyrant is a species of bird in the family Tyrannidae. It is found in southeastern Peru, western Bolivia and northern Argentina. Its natural habitat is subtropical or tropical moist montane forests. This and the Jelski's black tyrant are sometimes considered conspecific, in which case, the bird is then usually referred to as the Andean tyrant.
Diaphus hudsoni, or Hudson's lanternfish, is a species of lanternfish found worldwide.
