| Taxon | Authority/Year | Citation | Notes |
|---|---|---|---|
| Kakamega | Mann, Burton,PJK & Lennerstedt 1978 | BBOC 98 no.4 p.139 | 20 Dec. |
| Kakatoe (side 2) | Cuvier 1800 | LeconsdAnat.Comp. 1 tab.2 | April |
| Kakadoe | Gray,GR 1840 | ListGen.Birds p.53 | |
| Kalochelidon | Bryant,H 1867 | Proc.BostonSoc.Nat.Hist. 11 p.95 | Sig. dated May, 1867. |
| Kamptorhynchus | Eyton | Monogr.Anatidae p.57,151 | |
| Kamptorhynchus | Eyton 1838 | Monogr.Anatidae p.57 | June |
| Kampylorhynchus | Spix | ||
| Karrucincla | Roberts 1922 | Ann.TransvaalMus. 8 pt4 p.230 | Oct. 30 |
| Karua | Mathews 1913 | AustralAv.Rec. 2 no.2-3 p.59 | Oct. 23 |
| Kaupifalco | Bonaparte 1854 | Ann.Sci.Nat.Zool.(4) 1 pt2 p.110 | |
| Kaupifalco | Bonaparte 1854 | Rev.Mag.Zool.(2) 6 p.533 | Oct. |
| Kaupornis | Bonaparte 1854 | Ann.Sci.Nat.Zool.(4) 1 pt3 p.133 | |
| Kawabitakia | Hachisuka 1934 | Tori 8 no.38 p.222 | April |
| Kaznakowia | Bianchi 1906 | Bull.Acad.Imp.Sci.St.Petersb.(5) 23 no.1-2 p.41,45 | |
| Kasnakowia | Bianchi | cf. also Bianchi, Bull. Acad. Imp. Sci. St.-Pét., ser. V. 23, 1905, p. 45 | |
| Kasnakowia | Bianchi 1904 | AnnuaireMus.Zool.Acad.Imp.Sci.St.Petersb. 8["1903"] no.2 Compt.Rend. p.11 | = Mch. 1904 |
| Kaznakowia | Bianchi 1906 | Bull.Acad.Imp.Sci.St.Petersb.(5) 23["1905"] no.1-2 p.45 | Feb. 1906 |
| Keartlandia | Mathews 1917 | AustralAv.Rec. 3 no.4 p.78 | July 21 |
| Kelaartia | Jerdon 1863 | BirdsIndia 2 pt1 p.86 | |
| Kelea | Merrem 1818 | Allg.Encyc.[Ersch&Gruber] sect.1 1 p.338 | |
| Kempia | Mathews 1912 | AustralAv.Rec. 1 no.5 p.109 | Dec. 24 |
| Kempiella | Mathews 1913 | AustralAv.Rec. 2 no.1 p.12 | Aug. 2 |
| Kenopia | "Blyth 1855". Can't find in J.A.S.B. for 1855 | ||
| Kenopia | Gray,GR 1869 | Hand-listGen.Spec.Birds[Gray] 1 p.317 | |
| Kenopia | Salvadori 1874 | Ann.Mus.Civ.Stor.Nat.Genova 5 p.223 pl.5 fig.2 | |
| Kentrophorina | Mathews 1928 | BirdsNorfolkL.HoweIsl. p.6 | Oct. 16 |
| Kentrophorina | Mathews 1928 | BirdsNorfolkL.HoweIsl. p.6 | |
| Keron | Montin 1776 | Phys.Sallsk.Handl. 1 no.3 p.155 | Not used generically. |
| Keropia | Gray,GR 1840 | ListGen.Birds p.28 | |
| Keropia | Gray,GR 1840 | ListGen.Birds p.28 | |
| Keroula | Gray,JE | Ill.Ind.Zool.[Hardwicke] 2 pl.33 fig.1,2 | 183[-] |
| Kerula | Cabanis 1850 | Mus.Hein. 1 p.67 | |
| Kerytus | Rafinesque 1815 | AnalyseNat. p.66 | |
| Ketupa | Lesson 1830 | TraitedOrn. livr.2 p.114 | May |
| Ketupu | Gray,GR 1840 | ListGen.Birds p.6 | |
| Kinkus | Rafinesque 1815 | AnalyseNat. p.68 | |
| Kitta | Temminck 1826 | Pl.Col. livr.67 pl.396 | July |
| Kitta | Lesson 1830 | TraitedOrn. livr.5 p.349 | Nov.-Dec.? |
| Citta | Gray,JE | Anim.Kingd.[Griffith] 6 p.294 | |
| Kittacincla | Gould 1836 | PZS Pt4 no.37 p.7 | Apr. 9 |
| Kittasoma | Gray,GR 1869 | Hand-listGen.Spec.Birds[Gray] 1 p.284 | |
| Kittlitzia | Hartert,E 1891 | Kat.Vogel.Mus.Senck.naturfor.Frankfurt p.75,76,note131 | January |
| Kittlitzia | Hartlaub 1892 | Abh.naturwiss.Ver.Bremen 12 no.3 p.391 | "May" |
| Kiwi | Verheyen 1960 | Bull.Soc.R.Zool.Anvers no.15 p.10 | March |
| Klais | Reichenbach 1854 | J.Orn. 1["1853"] Beil.zuExtraheft p.5,13 | |
| Knathodon | Peale 1848 | U.S.Expl.Exped. 8 p.209,note | |
| Knestrometopon | Neumann 1920 | J.Orn. 68 no.1 p.77 | Jan. |
| Knipolegus | Boie,F 1826 | Isis 19 Heft10 col.973,note | |
| Korora | Marples 1952 | N.Z.Geol.Surv.Paleont.Bull. 20 p.43 | May |
| Koskoroba | David 1871 | Nouv.Arch.Mus.Hist.Nat.Bull. 7 fasc.2 p.13 | David's paper dated 4 Nov. 1871. |
| Koslowia | Dresser 1905 | Ibis p.154 | Publ. earlier? |
| Koslowia | Dresser 1905 | Ibis(8) 5 no.18 p.154 | April |
| Kozlowia | Bianchi 1907 | Av.Exped.Kozlowi p.21 pl.1 | |
| Kranocera | Ramsay,EP 1877 | Proc.Linn.Soc.NewS.Wales(1) 1 pt4 p.372 | Mch. |
| Krimhilda | Wolters 1943 | Zool.Anz. 143 no.7-8 p.188 | Aug. 30 |
| Krimnochelidon | Tickell 1876 | Ibis(3) 6 no.23 p.356 | July |
| Kroicocephalus | Jameson,W 1839 | J.Asiat.Soc.Bengal 8 no.87 p.243 | |
| Ktinorhynchus | Eyton 1838 | Monogr.Anatidae Preface; p.137 | |
| Kubaryum | Momiyama 1922 | BirdsMicronesia[Momiyama] p.1 | Zosteropus |
| Kubaryum | Momiyama 1922 | BirdsMicronesia[Momiyama] p.1 pl.7 fig.4 | |
| Kuina | Hachisuka 1937 | BBOC 57 p.156 | |
| Kupeornis | Serle 1949 | BBOC 69 p.50 | Apr. 11 |
| Kurukuru | Prevost,F & Des Murs 1849 | Voy.VenusZool.["1855"] p.220 | |
| Kurukuru | Jacquinot & Pucheran 1853 | Voy.PoleSudZool. 3 p.112 | |
| Kurucuru | Hartlaub 1854 | J.Orn. p.166 | For Mch. |
| Kurukuru | Bonaparte | Consp.Gen.Av. 2 p.16 | Signature dated "October 1854." |
| Kurutreron | Bonaparte 1854 | Ann.Sci.Nat.Zool.(4) 1 p.139 | |
| Kurutreron | Bonaparte 1854 | Compt.Rend. 39 no.19 p.878 | Not earlier than Nov. 6 |
| Kurutreron | Bonaparte | Consp.Gen.Av. 2 p.25 | Signature dated "8 Nov. 1854." |