A birdbath needs regular cleaning because warm, shallow water quickly collects algae, leaves, droppings, and mosquito larvae. A simple routine keeps the basin safer for birds and avoids sending harsh residue into the surrounding soil.
Empty and inspect
Pour the old water onto a planted area only if it contains no chemical cleaner. Remove leaves and debris by hand, then inspect the basin for cracks, sharp edges, or a loose pedestal. Move the bath to a stable, shaded location if it overheats or tips easily.
Scrub with plain water
Use a dedicated brush and fresh water to loosen algae and film. For stubborn buildup, follow the manufacturer’s guidance for a bird-safe cleaner, rinse repeatedly, and never leave a concentrated product in the basin. Do not mix bleach with vinegar or other cleaners.
Refill and maintain
Fill with fresh water and change it every day or two during hot weather. Rinse the basin whenever you see film forming. Keep the water shallow, place a rough stone or landing area inside if appropriate, and position the bath where cats cannot hide nearby. Clean gloves and tools after the task.
If the basin has persistent green growth, more shade and frequent water changes usually help more than stronger chemicals.