| Lith. | kerko | Great Crested Grebe, 66 |
| Lettish | karkaulis | Great Crested Grebe, 66 |
| Lith. | karkti | to cackle |
| Lettish | kerciens | to crow |
| Georg. | kirkita | Kestrel, 234 |
| Anc.Greek | kerkèris, kerkithalís | prob. Garganey, 43 |
| Arabic: Eg. | kerkej | Garganey, 43 |
| Anc.Greek | kérkax, kerkís, kerknos | prob. Kestrel, 234 |
| Anc.Greek | kerkíon, kerkoronos | Rollier de l'Inde, 264a |
| Anc.Greek | kerchneis | Kestrel, 234 |
| Engl. (OE) | circian | to roar |
| Roman. | cîrc | grognement |
| Roman. | cîrcâi | to cackle etc. |
| Roman.reg. | kírcâie | to chatter (Magpie, 288) |
| Roman. | cîrcota | quarrel |
| Russian | karkat' | to crow |
| Sbc. | kvarkati | (parasitic /v/) to crow |
| Lith. | kvarkimas | crowing |
| Germ. reg. | quarker | Corncrake, 146 |
| Anc.Greek | kerchnís | Corn Bunting, 445 |
| Mod.Greek | kekropouli | Corn Bunting, 445 |
| Mod.Greek | tsakróstrouthos | Corn Bunting, 445 |
| Sbc. | krkavec et var. | Corn Crake, 146; Buzzard, 211; Garganey, 43; Raven, 283; Nutcracker, 291 |
| Czech | krkavec | Carrion Crow, 280 |
| Slk. | krkavec | Buzzard, 211; Raven, 283 |
| Anc.Greek | kerkax | Kestrel, 234 |
| Mod.Greek | kirkinezi | Kestrel, 234 |
| Anc.Greek | kírkè | an unidentified bird |
| Mod.Greek | kirkiri | Garganey, Teal, 43, 44 |
| Ital.: Sic. | chirchiredda | Kestrel, 234 |
| Ital.: Sard. | circuredda | Garganey, 43 |
| Ital.: Abruz. | chirrechirre | raganella |
| Aroman. | chirchirinâ | Mistle Thrush, 340 |
| Franç.: Metz | kirkir (chanter au) | chanter faux, FEW 23: 142 |
| Arabic | girgir | Guineafowl, 6 |
| Pers. | ghirrghirra | Guineafowl, 6 |
| Arabic | kurki | Crane, 133 |
| Pers.(a.litt.) | kurki | Crane, 133 |
| Pers. | karkarak | Magpie, 288 |
| Pers.(a.litt.) | kahrkatàs | domestic cock |
| Anc.Greek | kórkora | an unidentified bird |
| Mod.Greek | karkaréli | Garganey, 43 |
| Mod.Greek | karkanéri | Garganey, 43 |
| Franç. | carquanne et var. | Garganey, 43 |
| Franç.: Lavedan | acarcá | japper, FEW 22: 8 |
| Franç.oc. | carcanes | Nightjar, 251 |
| Franç.: SR (a.litt.) | charcuse | querelle, FEW 24: 76 |
| Franç.: Ambert | charchigná | provoquer |
| Roman. | curcán | Raven, 283 |
| Lith. | kurkti | to crow |
| Roman. | corcodán | Turkey, 5 |
| Roman. | corcodél | Great Crested Grebe, 66 |
| Gallego | corco | Great Crested Grebe, 66 |
| Roman. | corco | domestic duck, 40 |
| Esp. | corco | domestic duck, 40 |
| Esp. | corconera | Cormorant, 105 |
| Ukr. | korkulj | Great Crested Grebe, 66 |
| Sbc. | kvorkati | (parasitic /v/) to call (Curlew, 167) |
| Alb. | korkozhel | seesaw |
| Lettish | kurkStèt | to crow |
| Franç. | courcaillet | song of the Quail, 23 |
| Franç.rég. | carcaillet et var. | Quail, 23; song of the quail |
| Franç.: Mos. | en.hèrhèlè | exciter les poules, FEW 22: 15 |
| Franç.: Metz | ãferholè | effaroucher les poules, FEW 22: 15 |
| Franç.: Ldes | harhalha | rire beaucoup, FEW 22: 70 |
| Basque | karkara | éclat de rire; Green Woodpecker, 270 |
| Ital.sud | carcaredda | Roller, 264 |
| Ital.sud | carcarazza | Magpie, 288 |
| Ital.: Cal. | carcarïare | noise |
| Ital.: Cal. | carcariella | frog, cricket |
| Gallego | carcarexo | cackling |
| Franç.: St. Genis | carcelô | son rendu par un plat fêlé FEW 23: 200 |
| Esp.: And. | charchalear | to talk vainly |
| Esp.: Nav. | charchabelar | Tree Pipit, 307 |
| Franç.: Isère | karkavelá | to cackle (domestic hen, 2), FEW 22: 14 |
| Roman. | cârcâi | to cackle |
| Ital.: Sard. | carcarare | to cackle (certain birds, Herring Gull, 81) |
| Esp.reg. | calcaré | Quail, 23 |