It is a fairly common species in arid to humid regions, replaced in La Guajira by the Guajiro Finch (Arremonops tocuyensis). Its name Arremonops derives from the Greek roots arrhemon = silent and ops = with the appearance of, referring to its inconspicuous habits and the fact that it resembles the species of the genus Arremon. Its epithet conirostris derives from the Latin roots conis = cone and rostris = beak, referring to its cone-shaped beak.

The white-eyed tody-tyrant (Hemitriccus zosterops) is a species of bird in the family Tyrannidae, the tyrant flycatchers.It is found in the northern Amazon Basin of Brazil and the Guianas of French Guiana, Suriname, and southeast Guyana; also Amazonian Colombia, Venezuela, Ecuador and Peru.It is a small short-tailed bird, medium grayish and olive-greenish with fleckings of deep black and white on its wings. It has a short sharp stout black bill, and is named for its narrow white eye-ring and its white eyes. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical dry shrubland. In the Amazon Basin it is only found north of the Amazon River; in Venezuela it is in the headwaters of the Orinoco River in the south.

The snail kite (Rostrhamus sociabilis) is a bird of prey within the family Accipitridae, which also includes the eagles, hawks, and Old World vultures. Its relative, the slender-billed kite, is now again placed in Helicolestes, making the genus Rostrhamus monotypic. Usually, it is placed in the milvine kites, but the validity of that group is under investigation.

It is a noisy bird that lives in the lowlands east of the Andes and, unlike other species of the genus, it forages more frequently in the understory. Its name Monasa derives from the Greek monas, monos = lonely. The epithet nigrifrons means black forehead and derives from the Latin roots niger = black and frons = forehead.

Silent bird that lives in low strata of humid forests. Its name Malacoptila means soft plumage and derives from the Greek roots malakos = soft and ptilon = plumage. His epithet mystacalis means mustache and comes from the Greek mustax, mustakos.

This species is found in the Andes with a very localized distribution. Its name Chlorophonia comes from the Greek roots khloros = green and euphonia = euphony or excellence of tone. Its epithet pyrrhophrys comes from the Greek roots purrhos = flame color or red and ophrus = eyebrow.

Populations of this species are found mainly in Colombia and a small portion of northwestern Venezuela. Its name Thamnophilus comes from the Greek roots thamnos = bush and philos = lover of. The epithet multistriatus comes from the Latin roots multi = much and striatus = striated.