Black-eared Fairy
Heliothryx auritus
The black-eared fairy is 10.1 to 13.7 cm (4.0 to 5.4 in) long and weighs 4 to 6.3 g (0.14 to 0.22 oz). The nominate male has bright shiny green upperparts, pure white underparts, and a long pointed tail which has darkish blue central and white outer feathers. It has a black patch below the eye, glittering purple ear coverts, and a short, straight, black bill. The female is similar but has no purple on the face, its throat and breast have grayish dots, and the three outer pairs of tail feathers have a black band at their base.
ID text from Wikipedia, CC BY-SA 4.0
Purple-crowned Fairy
Heliothryx barroti
The purple-crowned fairy is 9 to 13 cm (3.5 to 5.1 in) long and weighs about 5.5 g (0.19 oz). It is slender and has bright emerald green upperparts, pure white underparts, and a long pointed tail which has blue-black central and white outer feathers. It has a black patch through the eye and the bill is short, straight, and black. The male has a metallic violet forecrown; the eye patch has a metallic violet spot behind it and bright emerald green below it. The female has a green crown and the face has less black, no violet spot, and no green below the black. Voice: The purple-crowned fairly is not highly vocal. It does make a call that has been described as "a high, thin, slightly metallic sssit, which may be run into longer rapid series."
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: Black-eared Fairy and Purple-crowned Fairy.