Kekeo

Kekeo ni ndege wadogo hadi wakubwa kiasi wa nusufamilia Cuculinae katika familia Cuculidae. Wana mkia mrefu na mabawa marefu na membamba. Miguu yao ina vidole viwili vikabilivyo mbele na viwili vikabilivyo nyuma. Rangi zao kuu ni nyeusi, nyeupe na rangi ya kijivi, pengine rangi ya majani na ya manjano. Kekeo hula wadudu, mabuu ya wadudu na matunda, na spishi kubwa hula wanyama wadogo pia.

Kekeo hawajengi tago lao lenyewe lakini hutaga mayai yao katika matago ya ndege wengine, yai moja katika kila tago baada ya kutoa yai moja la mwenye tago (udusio wa kiota, Kiing. brood parasitism). Kwa kawaida mayai ya kekeo yafanana na yale ya mwenye tago. Mara nyingi ndani ya domo la makinda yao ni sawasawa na ile ya makinda ya mwenyewe, pengine wanafanana kabisa, lakini kinda la kekeo ni takriban kila mara mkubwa zaidi. Akitoka yai ayasukuma mayai au makinda ya mwenyewe nje ya tago. Mwenye tago aendelea kumpa kinda la kekeo chakula.

Spishi za Afrika 
 Cercococcyx mechowi, Kekeo Mkia-mrefu Kijivucheusi (Dusky Long-tailed Cuckoo)
 Cercococcyx montanus, Kekeo Mkia-mrefu Miraba (Barred Long-tailed Cuckoo)
 Cercococcyx olivinus, Kekeo Mkia-mrefu Zeituni (Olive Long-tailed Cuckoo)
 Chrysococcyx caprius, Kekeo Didariki (Dideric Cuckoo)
 Chrysococcyx cupreus, Kekeo Kijani (African Emerald Cuckoo)
 Chrysococcyx flavigularis, Kekeo Koo-njano (Yellow-throated Cuckoo)
 Chrysococcyx klaas, Kekeo Shaba (Klaas's Cuckoo)
 Clamator glandarius, Kekeo Madoa (Great Spotted Cuckoo)
 Clamator jacobinus, Kekeo Rangi-mbili (Jacobin au Pied Cuckoo) – pengine inaainishwa ndani ya jenasi Oxylophus
 Clamator levaillantii, Kekeo Michirizi-myeusi (Levaillant's Cuckoo) – pengine inaainishwa ndani ya jenasi Oxylophus
 Cuculus canorus, Kekeo wa Ulaya (Common Cuckoo)
 Cuculus clamosus, Kekeo Mweusi (Black Cuckoo)
 Cuculus gularis, Kekeo Kijivu (African Cuckoo)
 Cuculus poliocephalus, Kekeo Mdogo (Lesser Cuckoo)
 Cuculus rochii, Kekeo wa Madagaska (Madagascar Cuckoo)
 Cuculus solitarius, Kekeo Kidari-chekundu (Red-chested Cuckoo)
 Nannococcyx psix, Kekeo Mdogo wa Saint Helena (Saint Helena Cuckoo) imekwisha sasa (karne ya 18)
 Pachycoccyx audeberti, Kekeo Domo-nene (Thick-billed Cuckoo)

Spishi za Asia 
 Cacomantis aeruginosus (Moluccan Cuckoo)
 Cacomantis castaneiventris (Chestnut-breasted Cuckoo)
 Cacomantis flabelliformis (Fan-tailed Cuckoo)
 Cacomantis leucolophus (White-crowned Cuckoo)
 Cacomantis merulinus (Plaintive Cuckoo)
 Cacomantis pallidus (Pallid Cuckoo)
 Cacomantis passerinus (Grey-bellied Cuckoo)
 Cacomantis sepulcralis (Rusty-breasted Cuckoo)
 Cacomantis sonneratii (Banded Bay Cuckoo)
 Cacomantis variolosus (Brush Cuckoo)
 Chrysococcyx basalis (Horsfield's Bronze Cuckoo)
 Chrysococcyx lucidus (Shining Bronze Cuckoo)
 Chrysococcyx maculatus (Asian Emerald Cuckoo)
 Chrysococcyx megarhynchus (Long-billed Cuckoo)
 Chrysococcyx meyerii (White-eared Bronze Cuckoo)
 Chrysococcyx minutillus (Little Bronze Cuckoo)
 Chrysococcyx osculans (Black-eared Cuckoo)
 Chrysococcyx ruficollis (Rufous-throated Bronze Cuckoo)
 Chrysococcyx russatus (Gould's Bronze Cuckoo)
 Chrysococcyx xanthorhynchus (Violet Cuckoo)
 Clamator coromandus (Chestnut-winged Cuckoo)
 Cuculus crassirostris (Sulawesi Cuckoo)
 Cuculus lepidus (Sunda Cuckoo)
 Cuculus micropterus (Indian Cuckoo)
 Cuculus saturatus (Himalayan Cuckoo)
 Cuculus optatus (Oriental Cuckoo)
 Eudynamys melanorhynchus (Black-billed Koel)
 Eudynamys orientalis (Pacific Koel)
 Eudynamys scolopaceus (Asian Koel)
 Hierococcyx bocki (Dark Hawk-cuckoo)
 Hierococcyx fugax (Malaysian Hawk-cuckoo)
 Hierococcyx hyperythrus (Rufous Hawk-cuckoo)
 Hierococcyx nisicolor (Hodgson's Hawk-cuckoo)
 Hierococcyx pectoralis (Philippine Hawk-cuckoo)
 Hierococcyx sparverioides (Large Hawk-cuckoo)
 Hierococcyx vagans (Moustached Hawk-cuckoo)
 Hierococcyx varius (Common Hawk-cuckoo)
 Microdynamis parva (Dwarf Koel)
 Scythrops novaehollandiae (Channel-billed Cuckoo)
 Surniculus dicruroides (Fork-tailed Drongo-cuckoo)
 Surniculus lugubris (Square-tailed Drongo-cuckoo)
 Surniculus musschenbroeki (Moluccan Drongo-cuckoo)
 Surniculus velutinus (Philippine Drongo-cuckoo)
 Urodynamis taitensis (Long-tailed Cuckoo)

Spishi za kabla ya historia 
 Eocuculus sp. - (Mwisho wa Eocene ya Teller County, MMA) 
 Eudynamis cf. taitensis (Henderson Island Koel) (Mwisho wa Quaternary)

Picha 

Kekeo na jamaa