I simply got tired of the mess, the mixing and the constant bother of nectar
feeders for Hummingbirds (I had four feeders). Although the hummers loved them – I didn’t.
Plus, I can’t emphasize strongly enough that the poison atrazine should not be used on lawns at all, because the roots of trees cover the entire property of most lots. It can kill or weaken them.
In warm weather, a small, inexpensive “dunk” floating in the birdbath kills mosquitoes, but won’t harm birds or pets at all.
If you’re planning to put out a birdbath, remember that birds frighten easily. They’re small and (except for a few species) swim poorly. They shy away from water that’s more than 2½-3 inches deep. They also prefer a gradually sloping bottom, instead of a sudden dropoff to the birdbath’s full depth.