Rufous-rumped Seedeater

Chunky brown bird of Argentina’s Monte desert region. From other cacholotes by reduced crest, whitish throat, and grayish plumage. Forages on or near ground, but will rest or sing from high exposed perches, especially telephone poles or tall, bare trees. Song a raucous, very long series of squeaky but dry notes, often given in duet. Calls very dry, almost reminiscent of woodpecker taps.

Restless tanager found in the undergrowth of forests and second growth; usually accompanies mixed-species flocks. Males have a black mask and a yellow crown stripe. Males also have an olive-gray head and back and are buff below with dark wings and tail. Females lack the yellow crown and mask and are generally more cinnamon below.

Small, gray flycatcher lacking strong markings. Note its peaked crown and yellow lower half off bill. Some birds may show faint wingbars and a slight yellowish cast to the belly. Little overlap with other pewees; in the Andes it might be found together with Eastern Wood-Pewee or Western Wood-Pewee during the northern winter. Southern Tropical Pewee has shorter wings, a longer tail, and may show a faint spot between the bill and eye. Voice is the most reliable way to separate them. Listen for an explosive “CHIpeer” as well as a series of sharp chip notes. Typically encountered at forest edge or in clearings. Often perches on an exposed branch, from which it flies out to chase insects in looping, acrobatic sallies.