Red-billed Firefinch
Lagonosticta senegala
The red-billed firefinch is 10 cm (3.9 in) in length. The adult male has entirely scarlet plumage apart from brown wings. The bill is pink, and there is a yellow eye-ring. Females have uniformly brown upperparts and buff underparts. There is a small red patch in front of both eyes, with the bill also being pink.
ID text from Wikipedia, CC BY-SA 4.0

Zebra Finch
Taeniopygia guttata
Voice: Only male zebra finches sing. Each finch has an individual song. Between the ages of 25 and 90 days old, young zebra finches learn to sing by copying the songs of adults, and sometimes by copying the songs of other juveniles.
ID text from Wikipedia, CC BY-SA 4.0
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Red-billed Firefinch and Zebra Finch.