Grey-headed Kingfisher
Halcyon leucocephala
The sexes are similar. The adult of the nominate race H. l. leucocephala has a pale grey head, black mantle and back, bright blue rump, wings and tail, and chestnut underparts. Subspecies H. l. pallidiventris has a darker grey head and paler chestnut underparts but is otherwise similar. The beak is long, red and sharp. This bird grows to an average length of 21 cm (8.3 in). The song is a succession of notes, ascending, descending and then ascending again, becoming increasingly strident. The warning call is a series of sharp notes, "tchk, tchk, tchk, tchk".
ID text from Wikipedia, CC BY-SA 4.0
Striped Kingfisher
Halcyon chelicuti
The striped kingfisher of the nominate subspecies H. c. chelicuti averages 16 to 18 cm (about 6.5 in) from beak to tail. Perched adults look mostly greyish brown on the upper part of the body. The lower back, secondary flight feathers, and tail are metallic blue; this colour is much more visible when the bird flies than when it is perched, as is a white patch at the base of the primary flight feathers. The wing linings are white with a black border, and in males a black bar at the base of the primaries.
ID text from Wikipedia, CC BY-SA 4.0

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