Bare-faced Go-away-bird
Crinifer personatus
The sexes are similar, other than the female's green beak. It is 48 cm (19 in) long beak to tail, and weighs approximately 210 to 300 grams. Its call is a double or repetitive kow-kow.
ID text from Wikipedia, CC BY-SA 4.0
Great Blue Turaco
Corythaeola cristata
Generally, the great blue turaco is 70–76 cm (28–30 in) in length with a mass of 800–1,231 g (1.764–2.714 lb). The adult great blue turaco has predominantly grey-blue upperparts with an upright blue-black crest, white chin, yellow-green lower breast and yellow belly darkening to chestnut brown posteriorly. The undertail coverts are chestnut, and the undertail is black and yellowish. The yellow bill has an orange-red tip, the eyes are brown, and surrounded by a ring of black bare skin. The legs and feet are black with yellow soles. The sexes have similar plumage.
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: Bare-faced Go-away-bird and Great Blue Turaco.