| Kekeo |

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| Uainishaji wa kisayansi |
| Himaya: |
Animalia (Wanyama)
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| Faila: |
Chordata (Wanyama wenye ugwe wa neva mgongoni)
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| Ngeli: |
Aves (Ndege)
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| Oda: |
Cuculiformes (Ndege kama kekeo)
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| Familia: |
Cuculidae (Ndege walio na mnasaba na kekeo)
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| Nusufamilia: |
Cuculinae (Ndege wanaofanana na kekeo)
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| Jenasi: |
Cacomantis Muller, 1843
Cercococcyx Cabanis, 1882
Chrysococcyx Boie, 1826
Clamator Kaup, 1829
Cuculus Linnaeus, 1758
Eudynamys Vigors & Horsfield, 1827
Hierococcyx Müller, 1845
Microdynamis Salvadori, 1878
Pachycoccyx Cabanis, 1882
Rhamphomantis Salvadori, 1878
Scythrops Latham, 1790
Surniculus Lesson, 1830 Urodynamis Salvadori, 1880
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| Spishi: |
Angalia katiba
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Kekeo ni ndege wadogo mpaka wakubwa kadiri 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 [hariri]
- 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)
- Pachycoccyx audeberti, Kekeo Domo-nene (Thick-billed Cuckoo) imekwisha sasa (karne ya 18)
Spishi za Asia [hariri]
Spishi za kabla ya historia [hariri]
- Eocuculus sp. - (Mwisho wa Eocene ya Teller County, MMA)
- Eudynamis cf. taitensis (Henderson Island Koel) (Mwisho wa Quaternary)
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Horsfield's bronze cuckoo
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