Rujukan Hudhud kayu

  1. ↑ Mayr, Gerald (2000). "Tiny Hoopoe-Like Birds from the Middle Eocene of Messel (Germany)". Auk. 117 (4): 964–970. doi:10.1642/0004-8038(2000)117[0964:THLBFT]2.0.CO;2.
  2. ↑ Hackett, Shannon J.; Kimball, RT; Reddy, S; Bowie, RC; Braun, EL; Braun, MJ; Chojnowski, JL; Cox, WA; Han, KL (2008). "A Phylogenomic Study of Birds Reveals Their Evolutionary History". Science. 320 (5884): 1763–8. doi:10.1126/science.1157704. PMID 18583609. Unknown parameter |displayauthors= ignored (bantuan)
  3. ↑ Feduccia, Alan (1975). "The Bony Stapes in the Upupidae and Phoeniculidae: Evidence for Common Ancestry" (PDF). The Wilson Bulletin. 87 (3): 416–417.
  4. 1 2 3 4 Fry, C. Hilary (2003). "Wood-hoopoes". Dalam Perrins, Christopher (penyunting). The Firefly Encyclopedia of Birds. Firefly Books. m/s. 383. ISBN 1-55297-777-3. Unknown parameter |chapterurl= ignored (bantuan)
  5. 1 2 3 Ligon, D (2001). "Family Phoeniculidae (Woodhoopoes)". Dalam Josep, del Hoyo; Andrew, Elliott; Sargatal, Jordivdg (penyunting). Handbook of the Birds of the World. Volume 6, Mousebirds to Hornbills. Barcelona: Lynx Edicions. m/s. 412–427. ISBN 84-87334-30-X.
  6. ↑ Forshaw, Joseph (1991). Encyclopaedia of Animals: Birds. London: Merehurst Press. m/s. 148–149. ISBN 1-85391-186-0.
  7. 1 2 3 Zimmerman, Dale A.; Turner, Donald A.; Pearson, David J. (1999). Birds of Kenya and Northern Tanzania. Princeton University Press. m/s. 395. ISBN 0691010218.
  8. ↑ El-Bakary, Neveen (2011). ""Surface Morphology of the Tongue of the Hoopoe (Upupa Epops)"" (PDF). Journal of American Science. 7 (1).

Rujukan

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