Cliff Flycatcher
Hirundinea ferruginea
The cliff flycatcher is 15.5 to 18.5 cm (6.1 to 7.3 in) long and weighs 21 to 42 g (0.74 to 1.5 oz). The sexes have the same plumage. Adults of the nominate subspecies H. f. ferruginea have a brown crown and sides of the head, grayish forehead and ear coverts, a whitish supercilium, and a dark line through the eye. Their upperparts are brown. Their primary wing coverts are blackish brown with bright orange bases. Their secondary coverts and tertials are dark brown. Their primaries and secondaries are mostly orange with dark brown tips that extend up the outer webs of most of them. Voice: The "cliff" and "swallow" groups of the cliff flycatcher have different vocalizations. The northern and Andean "cliff" flycatchers sing "a two note ti-wee or ki-lee". They also make "single pip calls". The southern "swallow" flycatchers sing a "loose series of short phrases uttered at a leisurely pace a two note prrr-wheu.
ID text from Wikipedia, CC BY-SA 4.0
Yellow Tyrannulet
Capsiempis flaveola
The yellow tyrannulet is 10 to 11.5 cm (3.9 to 4.5 in) long and weighs about 8 grams (0.28 oz). The sexes have the same plumage. Adults of the nominate subspecies C. f. flaveola have a dark yellowish olive crown with a somewhat bushy crest. They have a bright yellow supercilium, a bright yellow partial eye ring, and a dark line through the eye on an otherwise yellowish face. Their upperparts are dark yellowish olive. Voice: The yellow tyrannulet is very vocal; its songs vary across its wide range and often include duets. In Costa Rica it sings a "sputtering series of wheep or wee-deep notes". In Ecuador the song is described as "a pleasant and rollicking series of notes that often seem to lack much pattern, usually starting slowly but then quickly speeding up".
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Cliff Flycatcher and Yellow Tyrannulet.