The National Wildlife Health Center (NWHC) has confirmed several doves collected across Texas, including the Trans Pecos and Rolling Plains, tested positive for Trichomoniasis.
Trichomoniasis is an infectious disease affecting birds caused by a protozoan (single-celled) parasite, Trichomonas gallinae. It affects mostly pigeons and doves, but other species, such as finches, may also become infected. In addition, birds of prey feeding on infected doves may also become infected. The disease does not always cause mortality. Trichomonas gallinae does not pose a human health risk.
TPWD recommends practicing appropriate biosecurity protocols to reduce wildlife contact with backyard flocks. If landowners see sick or dead doves or pigeons on their property, TPWD recommends discontinuing the use of bird feeders or bird baths until affected birds are gone from the area.
As a general best-practice, all bird feeders and baths should be cleaned frequently using a weak solution of household bleach (10% solution of sodium hypochlorite, or 1 part bleach to 9 parts water). Feeders and baths should be rinsed well and dried before re-use. It is recommended to periodically clean and disinfect bird feeders and bird baths, even if sick or dead birds have not been seen on property, as this can help prevent future disease outbreaks.
Use bird feeders that prevent the seed from getting wet. Bird seed exposed to rain or that becomes wet provides a more suitable environment for parasite survival.
Those who locate birds with signs consistent with Trichomoniasis should contact their local TPWD wildlife biologist.
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