| Ital.: Trent. | biro | domestic duck, 40; Lapwing, 158 |
| Franç.: Vienne | biro | Lapwing, 158 |
| Franç.: Liddes (VS) | biroû biroû | cri pour appeler un chien, FEW 22: 9 |
| Esp. | biro-biro | Oriole, 296 |
| Ital.: Piem. | birun | peg of a violin (cf. piroloð5.6.1.) |
| Ital.nord | birù, birèn | Turkey, 5 |
| Franç.rég. | biroune, birette etc. | goose, 27 |
| Franç.: Quimper | birouser | pleurnicher, FEW 22: 60 |
| Ital.reg. | birigògolo et var. | Oriole, 296 |
| Franç.rég. | biritte | House Sparrow, 410 |
| Franç.: Béarn. | biretès | Grand Ringed Plover, 163 |
| Ital.: Lomb. | biridö | Oriole, 296 |
| Alb. | lefero-biro, beribojë | id. |
| Franç.: Tarn | birahu | id. |
| Germ.reg. | bierholf | id. |
| Germ.: Transylv. | fingumbir | id. |
| Franç.rég. | berliboubou | id. |
| Ital.reg. | biridö | id. |
| Ital.reg. | birulá | to sing (Oriole, 296) |
| Franç.: Liège | birloure | noise, FEW 23: 196 |
| Franç. | mirliton | (b>m) instrument de musique; mauvais vers |
| Franç.centre | berioler, brioler | chanter en sons rentissants, FEW 23: 142 |
| Engl. | birrlbird | Grasshopper Warbler, 369 |
| Germ. | schwirren | to vibrate, sing (of certain insects or birds) |
| Germ.reg. | wirgeler | Whimbrel, 168 |
| Germ. reg. | zwirsel | Serin, 418 |
| Ukr. | vyrej | (Bielor. id.) Skylark, 297 |
| Germ.reg. | wyrauch et var. | Oriole, 296 |
| Skr. | svarati | noise |
| Bulg. | svirja | to whistle |
| Bulg. | sviracka | Wigeon, 46 |
| Sbc. | svirac | Wigeon, 46 |
| Roman. | sfîrîi | vibrate, to whistle etc. |
| Mod.Greek | sfýrizo | to whistle |
| Mod.Greek | sfýrichtari | Wigeon, 46 |
| Pol. | s'wierczyk | Nuthatch, 401 |
| Pol. | poswierka | Corn Bunting, 445 |
| Pol. | swiergótek | Tree Pipit, 307; Serin, 418 |
| Pol. | wiergulica | Black Swift, 321 |
| Port. | viró | Oriole, 296 |
| Franç.: H.Vienne | viro-lou-biou | Oriole, 296 |
| Esp. | viréo | Oriole, 296 |
| Lat. | vireo | (borrowing from Ibero-Romance; see preceding word; note accent) a yellow bird (no relation to viridis, the Oriole is not green) |
| Slk. | sovgabirov | Oriole, 296 |
| Russian | zaviruSka | joker; Whitethroat, 362 |
| Sbc. | zabirati | to sing (Nightingale, 337) |
| Sbc. | beretuSa | domestic duck, 40 |
| Sbc. | prebirati | to whistle, to warble |
| Basque | birao | offensive word |