Channel-billed Cuckoo
Scythrops novaehollandiae
The world's largest cuckoo, the channel-billed cuckoo measures between 56–70 cm (22–28 in) long, with a 88–107 cm (35–42 in) wingspan, and weighing between 560–935 g (1.235–2.061 lb). 24 adults were found to have averaged 684 g (1.508 lb) in body mass. According to a manual on avian body masses, another species of cuckoo, the buff-headed coucal, may have a mean body mass some 11% higher than the channel-billed cuckoo. The bill is bi-coloured, with a grey base becoming straw-coloured at the tip.
ID text from Wikipedia, CC BY-SA 4.0
Klaas's Cuckoo
Chrysococcyx klaas
Klaas's cuckoo is 16–18 cm (6.3–7.1 inches) in length. The species exhibits sexual dimorphism. Males have a glossy green body with few markings and plain white underparts. Females have a bronze-brown body, greenish wing coverts and faintly barred white underparts. Viewed in flight, the male is largely white with dark primaries and females appear mostly brown. Males and females both have a small white post-ocular patch.
ID text from Wikipedia, CC BY-SA 4.0
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Channel-billed Cuckoo and Klaas's Cuckoo.