(Trichomoniasis Gallinae)

  • Caused by a flagellate protozoan, not transmittable to humans or other mammals but can be caught by other birds by direct contact.
  • Must be treated, or pigeon will die of starvation, asphyxiation or choking

pigeon with canker

canker nocanker

same pigeon after treatment


  • Often visible as a deep yellow to brownish cheese-like lesion in the mouth or throat.


  • Do not try to remove or dislodge canker, as it could cause a fatal bleed!
  • An adult pigeon can be treated with one tablet of Spartrix (Carnidazole) a day for three days running. This can be obtained without prescription in the UK. A youngster or a dove would need half a tablet a day
  • Metronidazole (0.3 ml per 100gms of pigeon) can be given at the same time in serious cases, but continuing for a further 7 - 11 days (10 to 14 day course). Metronidazole is obtained by prescription from the vet.