Great Spotted Cuckoo
Clamator glandarius
This species is slightly larger than the common cuckoo at 35–39 cm (14–15 in) in length, but looks much larger with its broad wings and long narrow tail. The adult is grey above with a slender body, long tail and strong legs. It has a grey cap, grey wings, a yellowish face and upper breast, and white underparts. Sexes are similar. The juveniles have blackish upperparts and cap, and chestnut primary wing feathers. This species has a magpie-like flight. It is a bird of warm open country with trees.
ID text from Wikipedia, CC BY-SA 4.0

Jacobin Cuckoo
Clamator jacobinus
This medium-sized, slim black and white cuckoo with a crest is distinctive. The white wing patch on the black wing and the pattern make it unmistakable even in flight. They are very vocal during the breeding season. The call is a ringing series of whistling notes "piu-piu" with the calls of the nominate form more rapid and slightly Mellower. In India the subspecies serratus (Sparrman, 1786) is a summer breeding visitor to northern India and is believed to migrate to southern Africa.
ID text from Wikipedia, CC BY-SA 4.0
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