Who does not need water specially in a hot dry climate. To watch a bird taking a sip or a dip in the birdbath is always a pleasant sight. Seeing a bee take a sip of water is equally pleasurable but a birdbath is like a great lake for the bees. Many bees trying to reach for water drown in the birdbath.
A bee water source could be simply made by a putting some pebbles in a terracotta planter tray. Keep the tray on top of a stand or a planter or it can even be placed on the ground.
The pebbles in the tray provide a safe stepping place for the bees. Keep the bee water tray near the plants bees love to visit. The shallow water evaporates quickly in our dry climate so either keep it under a dripper or keep it at a convenient location where it can be refilled everyday. If there is leftover water in the tray make sure to spill it before refilling as mosquitoes can breed in stagnant water.
Enjoy the sight of bees buzzing around the water tray, it is quite addictive.