Giant Babax

Skulking warbler typically found in marshes, moist grassland, and edge of swampy forest. Male is quite distinctive with his black bandit mask and gray crown. Female can be confusing, but her yellow throat usually stands out against her olive upperparts and sides. Song is a rich up-and-down series of whistles. Calls include a descending series of chip notes and a short rasp. Pairs usually stay well hidden, but males sometimes sing from an exposed perch. This species is at least partially migratory. In the southern part of its range it is present only in the austral summer, when it breeds, then moves north in the winter. In some parts of its range it can be seen year-round. Formerly considered a subspecies of Masked Yellowthroat.

Inconspicuous flycatcher of Andean cloud forest. Plumage varies geographically but always has a gray head, olive back, and yellow spots on wings that may or may not form distinct wingbars. Underparts are bright yellow in most of its range. In northern and central Colombia, it has a pale gray throat and breast and a yellow belly. Usually found at middle levels of the forest, often with mixed-species flocks. Vocalizations include a series of downslurred notes and a rapid trill.

Hardly bigger than a sparrow, this odd little ground bird has a disproportionately loud song. The booming hoots the female gives during the breeding season are often the easiest way to find this species in the open grassy habitats it occupies. Females are more vividly colored than males, with a bright orange breast and nape, yellow belly, white throat, and speckled gray upperparts. Males have a faded version of the same general color scheme, but have less spotting on the breast and a tan throat.