The upper photo (Oldonyo Sambu) is courtesy of Per Holmen. the 2nd row photos (Piaya) show the iridescence in bright sunlight, courtesy of Gian Schachenmann. The 3rd row photos show a female (left, Orkesumet) and an immature (Mkomazi). The 4th row male (Oldonyo Sambu) is courtesy of Frank Priscus Shirima. The 5th & right 6th row bird was in Engikaret. The left 6th row male was in Soitorgoss; the left lower (Engikaret), courtesy of Valéry Schollaert; click it to see 13 enlargements.