Spotted Tody-Flycatcher
Todirostrum maculatum
The spotted tody-flycatcher is 8.9 to 10.2 cm (3.5 to 4.0 in) long and weighs 6.4 to 8.3 g (0.23 to 0.29 oz). The sexes have the same plumage. Adults of the nominate subspecies T. m. maculatum have a mostly gray head with a small white spot above the lores and some black and white streaks on the crown. Their back, rump, and uppertail coverts are olive. Their wings are brownish black with yellow edges on the flight feathers and yellowish edges and tips on the coverts; the last sometimes show as pale wing bars.
ID text from Wikipedia, CC BY-SA 4.0

Yellow-lored Tody-Flycatcher
Todirostrum poliocephalum
The yellow-lored tody-flycatcher is 8.8 to 10.2 cm (3.5 to 4.0 in) long and weighs about 5 to 6 g (0.18 to 0.21 oz). The sexes have the same plumage. Adults have a slate-gray crown and nape, large lemon yellow or sulphur yellow patches on the lores with a black stripe below them, and greenish cheeks. Their back, rump, and uppertail coverts are "siskin-green" (Wied's term) or olive. Their wings are black-brown with yellow-green edges on the flight feathers and yellow or olive edges on the coverts; the last show as two wing bars.
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: Spotted Tody-Flycatcher and Yellow-lored Tody-Flycatcher.