There was some good info in that article, but goldfish in birdbaths? My birdbaths are so small that I have to dump out the water every day. Those must be some big birdbaths!
Goldfish are great at eating mosquito larvae, but as long as a water feature has constantly moving water with no still areas, it won't become a mosquito incubator.
ssg, get a package of Mosquito Dunks and throw in little chunks every now and then until they plant them.
