Moving water attracts birds. Water Wiggler’s continuous movement works great to attract birds and helps prevent bites by eliminating stagnant water in bird baths. Water Wiggler’s unique agitator action creates continuous ripples in the water preventing mosquitoes from laying eggs in bird baths. The device is easy to install; just place it in your birdbath and go! The Water Wiggler requires no wiring and no plumbing and operates silently on two D-cell batteries for up to two months of 24 hour a day use. You can even use it with a heated bird bath in winter.