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Friday, July 4, 2014

Sick birds

In the last few months I've heard from several islanders who have sick birds in their yards. A few of them appeared to have conjunctivitis, also known as 'House Finch Eye Disease'. Birds with this bacterial disease have crusty, red, swollen eyes. Sometimes the eye appears completely shut. Here's the FAQ page from Cornell about this condition: HOFI Eye Disease

House Finch with early (?) conjunctivitis. Notice swollen eye, half-shut.  

And this week an islander contacted GROWLS about a sick Spotted Towhee that probably had Avian Pox, although this was not confirmed before the bird died. This viral disease, which occurs in the wild, has various forms but all are characterized by growths on the body. GROWLS conferred with Dr. Helen Schwantje, the B.C. Provincial Vet. She asks that any Gabriolans who see sick towhees try to get a photo then call the GROWLS pager at 250-714-7101

Avian Pox is not a known zoonose but anytime you handle wildlife, do wear gloves and be sure to wash your hands thoroughly afterwards. Here is a WILDLIFE FACT SHEET by Dr. Schwantje on Avian Pox: Avian Pox

For those with strong stomachs, here are two photos of a young eagle with Avian Pox that GROWLS saw in 2008. 

Young eagle with Avian Pox.
Photo by Bill Kalbfleisch

Close-up of young eagle with Avian Pox.
Photo by Bill Kalbfleisch

If you think you see a sick bird in your yard please be sure to call GROWLS. And if the sickness is confirmed, take down your feeders for several weeks and clean them thoroughly with a solution of water and bleach (9 to 1) before putting them up again. This will help stop the spread of the disease. Also, be sure to thoroughly clean the area UNDER the feeders where bird droppings carry bacteria.

Want to share your observations? If you're a member of Cornell's Project Feederwatch, you can report your findings there. See Track Sick Birds for information.

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