Common Cuckoo, Cuculus canorus "Cuckoo (Cuculus canorus)" by Rainbirder via Flickr, Creative Commons Attribution ShareAlike.

Taxonomy:

Cacomantis castaneiventris (Add)
Cacomantis flabelliformis (Add)
Cacomantis heinrichi (Add)
Cacomantis merulinus (Add)
Cacomantis passerinus (Add)
Cacomantis sepulcralis (Add)
Cacomantis sonneratii (Add)
Cacomantis variolosus (Add)

Caliechthrus leucolophus (Add)

Cercococcyx mechowi (Add)
Cercococcyx montanus (Add)
Cercococcyx olivinus (Add)

Chrysococcyx basalis (Add)
Chrysococcyx caprius (Add)
Chrysococcyx crassirostris (Add)
Chrysococcyx cupreus (Add)
Chrysococcyx flavigularis (Add)
Chrysococcyx klaas (Add)
Chrysococcyx lucidus (Add)
Chrysococcyx maculatus (Add)
Chrysococcyx meyeri (Add)
Chrysococcyx minutillus (Add)
Chrysococcyx osculans (Add)
Chrysococcyx ruficollis (Add)
Chrysococcyx xanthorhynchus (Add)

Clamator coromandus (Add)
Clamator glandarius (Add)

Common Cuckoo, Cuculus canorus

Cuculus clamosus (Add)
Cuculus crassirostris (Add)
Cuculus cucurbitae (Add)
Cuculus fugax (Add)
Cuculus gularis (Add)
Cuculus micropterus (Add)
Cuculus pallidus (Add)
Cuculus poliocephalus (Add)
Cuculus rochii (Add)
Cuculus saturatus (Add)
Cuculus solitarius (Add)
Cuculus sparverioides (Add)
Cuculus vagans (Add)
Cuculus varius (Add)

Eudynamys cyanocephalus (Add)
Eudynamys melanorhynchus (Add)
Eudynamys scolopaceus (Add)

Microdynamis parva (Add)

Oxylophus jacobinus (Add)
Oxylophus levaillantii (Add)

Pachycoccyx audeberti (Add)

Rhamphomantis megarhynchus (Add)

Scythrops novaehollandiae (Add)

Surniculus lugubris (Add)
Surniculus velutinus (Add)

Urodynamis taitensis (Add)