[header] How to treat blood mite in canaries [title] Take your bird to the vet. [step] It may be tempting to take the canary back to the pet store where you bought it, but there is a chance that the employees will not be able to correctly recommend a good treatment. If you find that you have an infestation, take your bird to the vet. 
The vet can correctly diagnose the type of mite and provide advice on proper treatments. [substeps] While your local vet may be able to handle birds, it is best to find an avian or exotic pet veterinarian.